JP7619620B2 - Online Learning System - Google Patents

Description

Article 30, paragraph 2 of the Patent Act applies 1) Website address https://www.naist.jp/pressrelease/2020/04/007005.html http://www.naist.jp/pressrelease/files/20200424is_matsumoto.pdf Date of website publication April 24, 2020 Publisher Toshitaka Hirao

Article 30, paragraph 2 of the Patent Act applies. 2) Website address: https://www.sakura.ad.jp/information/pressreleases/2020/04/24/1968203510/ https://www.sakura.ad.jp/information/wp-content/uploads/2020/04/16db4d567ddc4a4616bdd750f8959d24-1.pdf Date of website publication: April 24, 2020 Publisher: Toshitaka Hirao

Article 30, paragraph 2 of the Patent Act applies. 3) Website address: https://naist-se.github.io/news/2020/04-24-chameleon_pressrelease Date of website publication: April 24, 2020 Publisher: Toshitaka Hirao

Article 30, paragraph 2 of the Patent Act applies 4) Website address https://www.youtube.com/watch?v=CbhswWJTn0E Date of website publication May 14, 2020 Publisher Toshitaka Hirao

Article 30, paragraph 2 of the Patent Act applies 5) Broadcast program Kansai Information Net 10. Broadcast date May 14, 2020 Publisher Yomiuri Telecasting Corporation

Article 30, paragraph 2 of the Patent Act applies 6) Website address https://news.mynavi.jp/kikaku/20200731-1180406/ Date of website publication July 31, 2020 Publisher Toshitaka Hirao

Article 30, paragraph 2 of the Patent Act applies 7) Website address: https://japan.zdnet.com/extra/dell_202008/35158761/ Date of website publication: August 1, 2020 Publisher: Toshitaka Hirao

Article 30, paragraph 2 of the Patent Act applies. 8) Website address: https://expo.smartcity.kyoto/program/index.html Date of website publication: October 27, 2020 Publisher: Toshitaka Hirao

Article 30, paragraph 2 of the Patent Act applies 9) Website address https://news.mynavi.jp/kikaku/20201111-1445509/ Date of website publication November 11, 2020 Publisher Toshitaka Hirao

Article 30, paragraph 2 of the Patent Act applies. 10) Website address: https://youtu.be/ezezylysYzI Date of website publication: November 12, 2020 Publisher: Toshitaka Hirao

The present invention relates to technology for conducting group lessons and exercises remotely.

In conventional programming classes, several instructors, such as teachers and assistant instructors, and 10 to 40 students gather in a classroom, where the instructors directly correct and guide each student's program. However, in order to hold such a programming class, it is necessary for a large number of students to gather in one place, which creates problems in terms of time and space.
In recent years, therefore, online learning systems have been attracting attention because they allow learning to be done anytime and anywhere (see, for example, Patent Document 1).
The system of Patent Document 1 enables online learning using a multiple simultaneous dialogue system, which allows one instructor to give remote lectures to a large number of students.
However, in classes such as programming, students are required to practice creating source code, and when one instructor tries to instruct a large number of students in these exercises, the time it takes to instruct each student individually is time-consuming and inefficient.

In response to this, a system is known in which, in programming classes, instead of the teacher giving the class directly instructing each student, the teacher can provide guidance to students using advice data stored in the system (see Patent Document 2). In this system, source code created by students based on a given assignment is acquired, and advice associated with the acquired source code is output to a terminal used by the student. In the system disclosed in Patent Document 2, advice is created by a professional programmer based on data acquired from a large number of students.
However, in the system of Patent Document 2, since a specialized programmer does not directly instruct each student, there is a problem in that it is difficult to provide detailed instruction.

A known system that emphasizes convenience in programming learning is a remote programming training system that does not require the installation of software and allows learning using only a browser (see Patent Document 3). In this system, a learning environment is assigned to each student on a server-side computer, and the students access the server-side computer via the Internet, and the server-side computer holds learning content that each student can refer to at any time.
However, while Patent Document 3 claims that instructors can constantly monitor students' practical training status and provide students with detailed guidance and advice, there is a problem in that it does not fully disclose how guidance and advice is provided by such a system.

JP 2013-156870 A JP 2019-039971 A JP 2005-215714 A

In light of this situation, the present invention aims to provide an online learning system that enables multiple instructors to work together remotely to effectively and efficiently teach classes and conduct exercises for a large number of students, and also to provide support to individual students.

The online learning system of the present invention is an online learning system that transmits and receives data between at least one instructor terminal, at least one student terminal, and a server via a network, in which the student terminal uploads learning task window screen data for creating answers to descriptive exercises to the server in real-time cycles, and the instructor terminal downloads learning task window screen data of a specified student terminal or of student terminals belonging to a specific group or of all student terminals from the server in real-time cycles, and notifies events or transmits content to the learning task window screen. A specific instructor terminal sets the attributes of terminals connected to the system to either a student terminal or an instructor terminal, switches any student terminal to an instructor terminal, switches any instructor terminal other than itself to a student terminal, and transmits terminal attribute information to the server. A terminal connected to the system recognizes from the server whether its own terminal is a student terminal or an instructor terminal, and switches the display content of the learning task window screen.

The learning window screen data for creating answers is uploaded and downloaded in real-time cycles, so once the student's answer is displayed on the teacher's terminal, the process of the answer being created can be confirmed in real time. Therefore, even in the case of remote learning, the teacher's terminal can check the answer creation status on the student's terminal at any time as necessary, and can provide accurate support to the student's terminal in real time.
The learning window screen data uploaded or downloaded here may be the entire learning window screen data, or may be only data necessary for checking the answer creation status, i.e., data related to the answer creation part. The creation of answers to descriptive exercise questions is not limited to keyboard input, but may also be done using a digital pen or the like. Also, answers written on paper with a writing implement such as a pen may be converted into image data and entered.
Event notifications include notifications of teacher answer sharing events and notifications of grading results, while content includes chat messages and answers created by teachers.
The learning that is the subject of the online learning system of the present invention includes a wide range of learning that allows for descriptive problem exercises. Therefore, it is not limited by school type (such as "elementary school" or "junior high school") or field (such as "humanities,""socialscience," or "natural science"), and includes a wide range of subjects. Examples include programming, languages such as English, and general subjects such as mathematics.

In the online learning system of the present invention, it is preferable that the student terminal transmits a help request event for an exercise problem to the server, and the instructor terminal periodically receives information regarding the help request events of a specified student terminal, or of student terminals belonging to a specific group, or of all student terminals from the server.
The support request event may be a comment made via chat, or a notification that support is requested by clicking a support request button displayed on the learning task window screen.
A specific group refers to, for example, a group within a certain class that is divided into groups, but if multiple classes are set, one of the classes may be the specific group. Similarly, all student terminals may refer to all student terminals in all classes when multiple classes exist, or all student terminals in that class when there is only one class.
The period refers to a fixed time such as every 10 seconds or every minute, but in order to provide prompt support to a student terminal that has sent a help request event to the server, it is preferable that the period be shorter and that it be in real time.

In the online learning system of the present invention, the instructor terminal preferably comprises an exercise problem providing means for generating exercise problem data and transmitting it to a server, an instructor answer sharing means for generating instructor answer data and transmitting it to the server, and requesting the server to transmit the instructor answer data to a specified student terminal or to student terminals belonging to a specific group or to all student terminals, and a grading means for receiving the student answer data transmitted from the student terminal to the server, grading the student answers, and transmitting the grading results to the server.
By providing the exercise problem providing means, it becomes possible to easily provide exercise problems from the teacher's terminal to the student's terminal.
By providing a means for sharing answers by instructors, the contents of answers inputted by a keyboard or the like on the screen of the instructor's terminal can be easily shared with the student's terminal, enabling smooth support. In general, when an instructor directly edits answers prepared by students and provides support such as correcting mistakes, the students no longer need to correct them themselves, which leads to a problem that the learning effect is not improved. In this regard, by providing a means for sharing answers by instructors in the present invention, students using student terminals can manually correct their answers while referring to the answers prepared by the instructor, thereby realizing support with high learning effect.
By providing a grading means, it becomes possible to quickly grade answers entered by a keyboard or the like using the learning window screen of the student terminal and send them to the student terminal. The grading result here may be a binary evaluation such as correct or incorrect, or it may be an explanation or advice using text or figures on specific incorrect answers and corrections.

In the online learning system of the present invention, it is preferable that the student terminal is equipped with a problem display means for receiving practice problem data from the server and displaying it on a study work window screen, a means for generating student answer data based on the student answer entered using the study work window screen, and an answer submission means for transmitting the generated student answer data to the server.
By providing a problem display means, it is possible to display practice problems on the learning window screen of the student terminal. By providing an answer data generation means, it is possible to create an answer on the learning window screen of the student terminal. By providing an answer submission means, it is possible to request grading from the instructor terminal online.

In the online learning system of the present invention, it is preferable that the instructor terminal further comprises a person-in-charge setting means for setting or changing, for each instructor account, the student account or student account group that the instructor is in charge of.
By providing the means for setting the person in charge, it becomes possible to more smoothly support the student terminals. For example, if three instructor terminals and six student terminals are used and each terminal is accessed by a different instructor account or student account, it may be set so that each instructor account is in charge of two student accounts, or the number of people in charge may be appropriately adjusted depending on the instructor's experience and ability.

In the online learning system of the present invention, it is preferable that the student terminal and the instructor terminal further comprise chat means for inputting, outputting, and transmitting text messages between each other via the server.
By providing a chat means, communication can be quickly and easily performed between the lecturer terminal and the student terminal, making it possible to smoothly proceed with the lecture while supporting the students. Here, "between" does not necessarily mean between the student terminal and the lecturer terminal, but may mean, for example, between student terminals, or between lecturer terminals. In addition, a large number of terminals may participate, such as one lecturer terminal and two student terminals forming a group that can be used by three people, and a wide variety of combinations are possible.

In the online learning system of the present invention, it is preferable that the student terminal and the instructor terminal further comprise a communication means for communicating with each other using voice or voice and video via the server.
By providing a communication means, for example, a lecturer can use a lecturer terminal to give a lecture in real time to multiple students using different student terminals via video calls. Also, since multiple lecturer terminals can be used, it is easy to divide roles, for example, a lecturer using one lecturer terminal can focus on giving a lecture using the communication means, and a lecturer using another lecturer terminal can focus on supporting the student terminals.

In the online learning system of the present invention, it is preferable that the student terminal and the instructor terminal further include an answer verification means for testing the created program using an interpreter or compile method to confirm its operation when the descriptive exercise problem is programming.
By providing an answer verification means, for example, it becomes possible for the student to compile the source code he or she created and run the program himself or herself, making it easy to check whether or not the correct source code has been entered.

In the online learning system of the present invention, a specific instructor terminal includes a system management means. The system management means sets the attributes of terminals connected to the system as either student terminals or instructor terminals, switches any student terminal to an instructor terminal, switches any instructor terminal other than itself to a student terminal, and transmits the terminal attribute information to a server . The terminal connected to the system recognizes from the server whether its own terminal is a student terminal or an instructor terminal, and switches the display content on the learning task window screen .
By providing a system management means, for example, it becomes possible to switch a student terminal used by a student who is considered to have a high level of proficiency to a teacher terminal, and have that terminal support the student terminal together with other teacher terminals. Note that a specific teacher terminal is, for example, an administrator terminal that has been granted management authority, and management authority may be granted to multiple teacher terminals, not limited to one terminal.

The instructor terminal program of the present invention is a program installed in the instructor terminal in the above-mentioned online learning system, and causes a computer to function as each of the following means.
1) A periodic receiving means for downloading, from a server at a real-time cycle, learning task window screen data and information regarding support request events of a specified student terminal, or of student terminals belonging to a specific group, or of all student terminals.
2) An event transmission means for notifying an event or transmitting contents to the learning task window screen.
3) Exercise providing means for generating exercise data and transmitting it to the server.
4) A teacher answer sharing means for generating teacher answer data, transmitting the data to a server, and requesting the server to transmit the teacher answer data to a specified student terminal, or to student terminals belonging to a specific group, or to all student terminals.
5) A grading means for receiving student answer data transmitted from the student terminal to the server, grading the student answer, and transmitting the grading results to the server.

The online learning system of the present invention has the advantage that multiple instructors can work together remotely to effectively and efficiently teach classes and conduct exercises for a large number of students, and also provide support to individual students.

Functional block diagram of the online learning system System configuration diagram of the online learning system Overview of the online learning system Flow chart for monitoring answer creation status Image of question creation screen 1 Question creation screen image 2 Question creation screen image 3 Question creation screen image 4 Image of the sign-in screen Course selection screen image Video call screen image Image of screen sharing during a lecture Student screen during exercise Image of student screen during exercise 1 Student screen image during exercise 2 Image of a student's screen during chat support (Figure 1) Image of a student's screen during chat support 2 Image of a student's screen during chat support 3 Image of instructor's screen when displaying a list of students Image of the person in charge setting screen Image of the instructor's screen when the learning task window screen for all students is displayed Image of the instructor's screen during chat support (Figure 1) Image of the instructor's screen during chat support 2 Image of the instructor's screen during chat support 3 Grading screen image System management screen image

An example of an embodiment of the present invention will be described in detail below with reference to the drawings. Note that the scope of the present invention is not limited to the following examples and illustrated examples, and many modifications and variations are possible.

Fig. 1 shows a functional block diagram of an online learning system. As shown in Fig. 1, the online learning system 1 is a system that transmits and receives data between a student terminal 2, a lecturer terminal 3, and a server 4 via the Internet 5. The student terminal 2 includes a practice means 21, a student support means 22, and a communication means 23. The practice means 21 includes a question display means 21a, an answer data generation means 21b, an answer submission means 21c, and an answer verification means 21d. The student support means 22 includes a student chat means 22a, a lecturer answer display means 22b, and a support request means 22c.
The problem display means 21a receives the exercise problem data from the server 4 and displays it on the learning window screen. The answer data generation means 21b generates student answer data based on the student answer input using the learning window screen. The answer submission means 21c transmits the generated student answer data to the server. The answer verification means 21d tests the created program in an interpreter or compile mode to check the operation of the program when the descriptive exercise problem is programming. The student chat means 22a inputs and outputs and transmits and receives text messages between the other student terminals 2 and the instructor terminal 3 via the server 4. The instructor answer display means 22b displays the instructor answer data transmitted from the server 4 on the learning window screen. The support request means 22c transmits a support request event for the exercise problem to the server 4. The call means 23 communicates with the other student terminals 2 and the instructor terminal 3 via the server 4 using voice or voice and video.

The instructor terminal 3 includes an exercise problem providing means 31, an instructor support means 32, a communication means 33, and a marking means 34. The instructor support means 32 includes an instructor chat means 32a, a periodic receiving means 32b, an instructor answer sharing means 32c, a person in charge setting means 32d, and an answer verification means 32e.
The exercise problem providing means 31 generates exercise problem data and transmits it to the server 4. The instructor's chat means 32a inputs and outputs and transmits and receives text messages between the student terminal 2 and other instructor terminals 3 via the server 4. The periodic receiving means 32b downloads the learning task window screen data and information on support request events of the specified student terminal 2 or the student terminals 2 belonging to a specific group or all student terminals 2 from the server 4 in a real-time cycle. The instructor's answer sharing means 32c generates instructor's answer data and transmits it to the server 4, and requests the server 4 to transmit the instructor's answer data to the specified student terminal 2 or the student terminals 2 belonging to a specific group or all student terminals 2. The responsible setting means 32d sets or changes the responsible student account or student account group for each instructor account. The call means 33 communicates with the student terminal 2 and other instructor terminals 3 via the server 4 using voice or voice and video. The marking means 34 receives the student answer data transmitted from the student terminal 2 to the server 4, marks the student answer, and transmits the marking results to the server 4. When the descriptive exercise problem is programming, the answer verification means 32e tests the created program by an interpreter method or a compile method to check the operation of the program.

The server 4 includes an exercise control means 41, an assistance control means 42, a call control means 43, an account management means 44, and a storage means 45. The exercise control means 41 controls the exercise means 21 and the exercise problem providing means 31, and the assistance control means 42 controls the student side assistance means 22 and the instructor side assistance means 32. The call control means 43 controls the call means (23, 33). The account management means 44 individually manages accounts related to the instructor terminal 3 and the student terminal 2, and the storage means 45 stores the control contents of the exercise control means 41, assistance control means 42, and call control means 43 by linking them to the accounts.

Figure 2 shows a system configuration diagram of the online learning system. As shown in Figure 2, the online learning system 1 is composed of student terminals (2a to 2d), instructor terminals (3a to 3c), and a server 4, and can transmit and receive data via the Internet 5. The student terminals (2a, 2b) and instructor terminals (3a, 3b) are PCs, while the student terminal 2c and instructor terminal 3c are smartphones, and the student terminal 2d is a tablet terminal. In this way, various terminals can be used as the student terminals 2 or instructor terminals 3, not limited to PCs. Here, only four student terminals (2a to 2d) are shown as the student terminals 2, but three or less, or five or more, may be used. Similarly, the instructor terminals 3 are not limited to three instructor terminals (3a to 3c), but may be two or less, or four or more. In the following explanation using screen image diagrams, eight students (a-g) use separate student terminals 2 to take lectures and exercises related to programming learning, and three instructors (A-C) use separate instructor terminals 3 to instruct each student. The number of servers 4 is not limited to one, and multiple servers may be provided separately.

Fig. 3 shows a schematic flow diagram of the online learning system. As shown in Fig. 3, in the online learning system 1 of this embodiment, first, a practice problem is provided by the instructor terminal 3 (step S01). Next, the instructor terminal 3 starts a lecture to the student terminal 2 using the communication means (23, 33) (step S02). During the lecture by the instructor terminal 3, the student works on the practice problem using the student terminal 2 in response to instructions from the instructor (step S03).
If a student has questions about something he or she does not understand during the exercise (step S04), the student uses the student-side chat means 22a of the student terminal 2 to ask the instructor terminal 3 (step S05). The instructor using the instructor terminal 3 responds via the instructor-side chat means 32a (step S06). The student who receives the response makes corrections based on the response from the instructor terminal 3 (step S07).
If there are no questions from the students to the lecturer (step S04), the student terminal 2 transmits data on the answer sheet generated by the answer sheet submission means 21c to the lecturer terminal 3, and the lecturer terminal 3 grades the answer sheet by the grading means 34 (step S08). Then, the lecture ends (step S09).
Although FIG. 3 shows an example in which students work on exercise problems in response to instructions from a lecturer during a lecture, students may also work on the exercise problems after the lecture.

In the online learning system of this embodiment, the instructor can check the status of the students' answer creation in real time during the exercise. This function will be described with reference to FIG. 4. FIG. 4 shows a monitoring flow diagram of the answer creation status. As shown in FIG. 4, when the problem exercise starts on the student terminal 2 (step S11), the student terminal 2 transmits learning task window screen data for creating answers to descriptive exercise problems to the server 4 at a real-time cycle (step S12), and the server 4 receives the data (step S13).
The server 4 transmits the received learning task window screen data to the instructor terminal 3 at a real-time cycle (step S14), and the instructor terminal 3 receives it (step S15). The instructor terminal 3 transmits an event notification or content to the server 4 (step S16), and the server 4 receives it (step S17). The server 4 transmits the received event notification or content to the learning task window screen of the student terminal 2 (step S18), and the student terminal 2 receives it (step S19).
In this way, the learning work window screen data for creating answers is uploaded and downloaded in real-time cycles, so once the student's answer is displayed on the instructor's terminal, the process of creating the answer can be confirmed in real time. Therefore, even in the case of remote learning, the instructor's terminal 3 can check the answer creation status on the student's terminal 2 at any time as necessary, and can provide accurate support to the student's terminal 2 in real time.

(About providing questions)
Hereinafter, a description will be given with reference to specific examples of screen images. First, the creation of exercises using the exercise providing means 31 in the instructor terminal 3 (step S01) will be described.
5 to 8 show image diagrams of the question creation screen. As shown in Fig. 5, in the instructor screen 7a, the question creation display section 12a displays the items "Question number", "Public information", and "Edit/Delete" for each unit as an "exercise assignment list".
The "Question Number" item indicates which week the question is from, and on the instructor screen 7a it is displayed as "1st week." The week's question can be changed by clicking on the selection field 11f in the upper left corner of the screen. "1-1" and "1-2" are displayed as question numbers.

"Public information" indicates whether the question will be made public after it has been created. On the instructor screen 7a, the button 8a displays "Public," which indicates that the question is currently in a public state and can be switched to an unpublished state by clicking the button 8a. The "Edit/Delete" item allows the question to be edited or deleted after it has been created, and is executed by clicking the "Edit" or "Delete" button, respectively. The question creation display section 12a also has "Create question," "File upload," and "Specify language" buttons, and questions can be created on the instructor screen by clicking the "Create question" button. The "File upload" button is used to upload questions created in advance or data sets for data analysis learning, and the "Specify language" button is used to specify the programming language to be used.

When the "Create Question" button is clicked on the instructor screen 7a shown in FIG. 5, the instructor screen 7b shown in FIG. 6 is displayed. As shown in FIG. 6, the instructor screen 7b displays the items "Topic", "Exercise Number", "Question Statement" and "Hint" as "New Creation" in the question creation display section 12b, and each has an input field. Here, the "Topic" is "3rd week", the "Exercise Number" is "3-1", the "Question Statement" is "Create a function that outputs the formula for solving a quadratic equation when three numbers are given as input", and the "Hint" is "It can be created with function name (argument 1, argument 2, ...):". The instructor screen 7c in FIG. 7 is displayed by scrolling down the question creation display section 12b on the instructor screen 7b.

In the instructor screen 7c shown in FIG. 7, the items "Language Used", "Initial Code", "Input" and "Output" are displayed in the question creation display section 12b, and input fields are provided for each. Here, "Language Used" is input as "Python", "Initial Code" is input as "function name...", "Input" is input as "2 3 -5", and "Output" is input as "-2.5, 1". At the bottom of the question creation display section 12b, there are provided "Close" and "Create" buttons. By clicking the "Create" button, data related to the question is sent to the server 4 by the exercise problem providing means 31, and the question is created.
As a result of the creation of the question, an item "Third week" has been added to the selection column 11f on the instructor screen 7d shown in Fig. 8. In the "Question number" field, "Third week" and "1-1" are displayed. Regarding "Public information", the button 8a on the instructor screen 7d displays "Unpublished", indicating that the information is currently unpublished and that it can be switched to a public state by clicking the button 8a.

(About signing in)
In the online learning system 1 of this embodiment, it is possible to conduct exercises using student terminals 2 and lectures via video calls using instructor terminals 3, but as a prerequisite for exercises and lectures, the eight students (a to g) and three instructors (a to c) must each sign in to the online learning system 1.
Fig. 9 shows an image of the sign-in screen. Here, the sign-in screen on the student terminal 2 will be described, but it is similar for the instructor terminal 3. As shown in Fig. 9, an input field 10a for inputting a user ID, an input field 10b for inputting a password, and a "Sign in" button are displayed on the student screen 6a. The user inputs the user ID in the input field 10a, the password in the input field 10b, and clicks the "Sign in" button to sign in.

Fig. 10 shows an image of a course selection screen. On the student screen 6b shown in Fig. 10, two buttons, "Python Basics" and "Python Application", are displayed, and either course can be selected. The types and number of courses displayed can be changed as appropriate for each student terminal 2.
For example, when the "Python Basics" button is clicked, a screen will appear displaying the contents of the course on "Python Basics."

(About live lectures)
Next, a lecture (step S02) using the communication means (23, 33) from the lecturer terminal 3 to the student terminal 2 will be described. Fig. 11 shows an image of a video call screen. The student screen 6c shown in Fig. 11 shows lecturer A and students (a, b). Specifically, student a is shown on video display section 13a, lecturer A on video display section 13b, and student b on video display section 13c. Here, only one lecturer A and two students (a, b) are shown, but it is possible to simultaneously connect with a larger number of users and give a lecture.
The student terminal 2 or the instructor terminal 3 can use the video call operation unit 13d to perform operations such as speaking, leaving, and screen sharing.

Figure 12 shows an image of screen sharing during a lecture. The shared screen display section 13e of the student screen 6d shown in Figure 12 displays materials related to the lecture content shared by lecturer A using the lecturer terminal 3. This is a system in which students (a, b) using the student terminal 2 can deepen their understanding of the lecture content by receiving not only the lecture but also the shared materials.

(About the practice questions)
Next, the problem practice (step S03) using the student terminal 2 will be described. Fig. 13 shows an explanatory diagram of the student screen during the practice. As shown in Fig. 13, the student screen 6e is provided with buttons (8b to 8j), a practice problem display section 14, a student answer creation display section 15, and a verification section (16a, 16b). The buttons (8f to 8h) are displayed in the student answer creation display section 15, and the button 8i is displayed in the verification section 16a.
The exercise display section 14 is functioned by the exercise display means 21a, and displays "execution number", "execution", "input example", "output example" and "hint".

The student answer creation and display unit 15 functions by the answer data generation means 21b, and is composed of an online editor that can input and output on a web browser. The selection field 11a is a selection field for the language to be used, and in addition to the displayed "Python", "C language", "JavaScript" (registered trademark), "Racket", "C#", "Text", etc. can be selected. In addition, in cases other than programming learning, such as language learning, "Text" is selected.
The button 8g is for submitting an answer and is controlled by the answer verification means 21c. The button 8h is for requesting support from the instructor terminal 3 and is a mechanism for notifying the instructor terminal 3 when the button 8h is clicked. The button 8h is controlled by the support request means 22c.

The verification units (16a, 16b) perform verification by, for example, compiling and executing the input source code. Values are input to the verification unit 16a, and the output results are displayed on the verification unit 16b. The buttons (8f, 8i) are both buttons that execute a program, and are operated by the answer verification means 21d.

Button 8b is used to display and set information about the user account using the student terminal 2. Changes to user account settings are managed by the account management means 44. Button 8c is used to select a course, and button 8e is used to select an exercise. The buttons (8c, 8e) are operated by the exercise display means 21a. Button 8d is used to perform operations such as displaying the video call described above, and is operated by the call means 23. Button 8j is used to perform a text chat with the instructor terminal 3 or another student terminal 2, and is operated by the student chat means 22a.

14 and 15 show an image of a student screen during exercise. In the student screen 6f shown in FIG. 14, the exercise problem display section 14 displays "1-1" as the "problem number,""problem" as "Please output Hello world,""inputexample" as "none," and "output example" as "Hello world."
"Hello world" is displayed as a hint, and "Print("")" is displayed as a hint. "print("Hello world")" is entered in the student answer creation display unit 15. In addition, by clicking either of the buttons (8f, 8i), "Hello world" is displayed in the verification unit 16b.

In the student screen 6g shown in FIG. 15, the exercise problem display section 14 displays "1-2" for "problem number," "problem" as "enter two numbers in the input field and output the result of adding the two numbers," "input examples" as "1" and "2," "output example" as "3," and "hint" as "the input value can be obtained with the following code" and "n = input( )." The student answer creation display section 15 displays "a = input()," "b = input()," and "print("a+b")." In addition, the values "1" and "2" are entered in the verification section 16a, and by clicking one of the buttons (8f, 8i), the verification section 16b displays "a+b."

(About the student screen during support)
In the online learning system 1 of this embodiment, a student using a student terminal 2 can chat with a teacher using a teacher terminal 3 and create answers based on advice from the teacher (steps S04 to S07).
16 to 18 show images of the student screen during support by chat. In the state of the student screen 6g shown in Fig. 15, a student c using the student terminal 2 has a question about his/her answer sheet and asks the instructor using the instructor terminal 3 for support.
As shown in Fig. 16, student c entered "a = input()", "b = input()" and "print("a+b")" in the student answer creation display section 15, then entered values "1" and "2" in the verification section 16a and clicked one of the buttons (8f, 8i), but the verification section 16b did not display "3" as an "output example", but instead displayed "a+b". Student c then used the student chat means 22a to send questions to instructor B and ask for a response.
In the student screen 6h shown in Fig. 16, the chat display section 17a is displayed by clicking the button 8j. Then, "The answer is 'a+b'. It's not an addition. Why?" is entered and sent in the input field 10c, and the message is displayed on the chat display section 17a. In response to this, from the instructor terminal 3 used by instructor B, "In this case,
The reply was, "No, please delete it and try again." The reply from the instructor terminal 3 is made using the instructor's chat means 32a.

As shown in Figure 17, on the student screen 6i of the student terminal 2, in response to the answer from the instructor terminal 3, the input content "print("a+b")" in the student answer creation display section 15 is corrected to "print(a+b)."
After correcting the input content in the student answer creation display section 15 to "print (a+b)," the student c clicked again on one of the buttons (8f, 8i), but the verification section 16b again did not display "3" as an "output example," but instead displayed "12." Therefore, the student c used the student chat means 22a to ask a further question.
17, the student enters and sends "The result will be 12" in the input field 10c, and the message is displayed on the chat display section 17a. In response to this, the instructor terminal 3 used by instructor B displays the answer "This is because a and b are character strings. Try using int()."

As shown in Figure 18, on the student screen 6j, in response to the response from the instructor terminal 3, the input contents of "a = input()" and "b = input()" in the student answer creation display section 15 are corrected to "a = int(input())" and "b = int(input())."
After correcting the input contents in the student answer creation display section 15, the student c clicked one of the buttons (8f, 8i) again and confirmed that "3" was displayed in the verification section 16b. Then, the student c used the student side chat means 22a to send a message saying "I did it! Thank you very much!!"
In this way, according to the online learning system 1, while practicing using the practice means 21, questions can be asked and answered in real time using the student's chat means 22a and the instructor's chat means 32a, enabling efficient and effective learning.
16 to 18, the selection field 11b of the chat display section 17a displays "instructor", but other than that, it is possible to select a specific student terminal 2, a group, etc., although not shown. This allows for a wide range of uses, such as chatting between student terminals 2, or chatting in a group including the student terminal 2 and the instructor terminal 3.

(About the instructor screen during support)
Fig. 19 shows an image of the lecturer screen when displaying the student list. As shown in Fig. 19, the lecturer screen 7e displays a student list display section 18a, a student information display section 18b, a lecturer list display section 18c, and a group list display section 18d. The lecturer screen 7e can be accessed from the lecturer terminal 3.
The student list display section 18a displays a list of the learning status of students (a-g) using the student terminal 3, and displays items such as "student name,""status,""inprogress,""experiencelevel,""latestmessage,""elapsedtime," and "in charge," as well as the fact that there are seven students in total. "Student name" is the name of the student using the student terminal 2, and clicking on each name transitions to a teacher screen (7h-7k) where student answers can be displayed and chat can be conducted.

"Status" indicates whether the student is working smoothly on the exercises, and displays either "No problem", "Question" or "Waiting for grading". That is, when a question message is sent from the student terminal 2 by the student chat means 22a, or when a notification requesting support is sent by the support request means 22c, "Question" is displayed like for student g. Also, when an answer is submitted from the student terminal 2 by the answer submission means 21c, "Waiting for grading" is displayed like for student c. When there is no request for support such as a question message or when an answer is not submitted, "No problem" is displayed. Also, when the question is answered and the problem is solved, or when grading is completed, "No problem" is displayed.
"In progress" refers to the problem that the student is currently working on, and for example, in the case of student c and student g, it can be seen that they are currently working on problem "1-2." Problems that are currently being worked on are controlled by the exercise control means 41, and the display of "in progress" functions when the instructor terminal 3 accesses the server 4.

"Experience level" refers to the level of experience or proficiency in the learning in question. Here, there are three levels, from "1" to "3," with the student with the least experience being assigned a "1" and the student with the most experience being assigned a "3." This is manually set and changed via the instructor terminal 3.
"Latest message" refers to the latest message in chat between terminals, and is functioned by the student chat means 32a or the instructor chat means 32a. By displaying the latest message, the instructors (A to C) operating the instructor terminal 3 can easily determine which students should be given priority in support. "Elapsed time" refers to the time that has elapsed since the "latest message" was sent, and more specifically, indicates the time when the "latest message" was sent. For example, in the case of student c, it can be seen that the message "I did it! Thank you!!" was sent "four minutes ago." By displaying the "elapsed time," delays in support can be prevented.
"In charge" is the name of the instructor who is in charge of each student, and is implemented by the instructor setting unit 32d. For example, it can be seen that instructor B is in charge of student a, and instructor A is in charge of student d.

The student information display section 18b displays detailed information about students, and displays the items "Student name," "Change instructor," and "Experience level." "Student name" can be changed by clicking the "Details" item in the student list display section 18a. Figure 20 is an image of the instructor setting screen, showing the state in which the "Details" item for student g has been clicked. The "Select" button provided under "Change instructor" is operated by the instructor setting means 32d, and clicking it makes it possible to set or change the instructor (A to C) in charge of each student, as shown on the instructor screen 7f. Also, clicking the "Select" button provided under "Experience level" makes it possible to set or change the experience level.

The instructor list display section 18c displays the current status of each instructor (A to C) using the instructor terminal 3, and displays the items of "instructor name,""number of questions," and "homeroom teacher." Here, "number of questions" refers to the total number of question messages sent by the student chat means 22a from the student terminal 2 used by the students in charge of the instructor, and notifications requesting support sent by the support request means 22c. Also, "homeroom teacher" refers to the number of students in charge of the instructor.
The "Change Teacher" button provided in the teacher list display section 18c is operated by the teacher setting means 32d, and like the "Select" button related to "Change Teacher" provided in the student information display section 18b, clicking it allows the teacher in charge of each student to be set or changed. Since the teachers (A to C) using the teacher terminal 3 can check the number of students and the number of questions they are responsible for in real time, if there is a teacher with a large number of questions, they can flexibly respond by reducing the number of students in charge and assigning them to a teacher with fewer questions, thereby enabling quick and smooth support.

The group list display section 18d displays groups created by selecting multiple people from all students (a-g), and displays the "group name" and "number of participants." Groups can be created at will by clicking the "Create group" button on the instructor terminal 3.

Figure 21 shows an image of the instructor screen when the learning task window screen of all students is displayed. By the functioning of the periodic receiving means 32b, as shown in Figure 21, the student answer display section (15a to 15g) is displayed on the instructor screen 7g. The answer status of student a is displayed on the student answer display section 15a. Similarly, the answer status of student b is displayed on the student answer display section 15b, student c is displayed on the student answer display section 15c, student d is displayed on the student answer display section 15d, student e is displayed on the student answer display section 15e, student f is displayed on the student answer display section 15f, and student g is displayed on the student answer display section 15g. For example, it can be seen on the instructor screen 7g that no progress has been made in writing answers for students d and f. Therefore, the instructors (A to C) who use the instructor terminal 3 can grasp students who are thought to need support and provide appropriate support. In this way, the instructor terminal 3 can check the answer writing status of each student in real time, making it possible to provide quick and detailed support.

(About the instructor screen during support)
Next, support for the student terminal 2 by the instructor terminal 3 using chat will be described. Figures 22 to 24 show image diagrams of the instructor screen during support by chat. As shown in Figure 22, the instructor screen 7h displays a student information display section 18e, a chat display section 17b, an answer comparison display section 19, and a verification section (16c, 16d). The student information display section 18e displays the problem number of the exercise problem and the progress of the student, and is displayed by the functioning of the exercise means 21 and the exercise control means 41. Here, it is displayed that the student is currently working on problem "1-2".

The answer comparison display section 19 is composed of a student answer display section 15h and a teacher answer creation display section 19a. The student answer display section 15h functions by the periodic receiving means 32b.
In the student terminal 2, the learning work window screen data, i.e., data relating to the answer displayed on the student answer creation display section 15 shown in Figures 13 to 18, is uploaded to the server 4 at a real-time cycle, and the instructor terminal 3 downloads the learning work window screen data of the student terminal 2 from the server 4 at a real-time cycle, thereby displaying the student answers in real time on the student answer display section 15h.
The instructor answer creation display section 19a functions by the instructor answer sharing means 32c. A sample source code can be input to the instructor answer creation display section 19a, and by clicking the "send advice" button, it is possible to notify the student terminal 2 of an instructor answer sharing event. If the content input to the instructor answer creation display section 19a needs to be reset, it can be reset by clicking the "reset" button.
When the instructor's answer sharing event is notified, a button for displaying the instructor's answer appears on the chat display section 17a of the student's screen by the instructor's answer display means 22b (not shown). Then, by clicking the button, the instructor's answer can be displayed on the student's screen.
The selection box 11d provided in the answer comparison display section 19 is for displaying and changing the "experience level."

The verification units (16c, 16d) compile and execute the source code displayed in the student answer display unit 15h to perform verification. By inputting a value to the verification unit 16c and clicking the "Execute" button, the output result is displayed in the verification unit 16d. The verification units (16c, 16d) function using the answer verification means 32e.

The chat display section 17b displays chat exchanges between the instructor terminal 3 and the student terminal 2, and functions by the instructor's chat means 32a and the student's chat means 22a. In the instructor screen 7h shown in Fig. 22, question messages such as "Is this input()?" and "The result of the addition is not output correctly. Why?" are sent from the student terminal 2 used by the student g.
Since the student answer creation display section 15 of the terminal screen used by the student terminal g is shared in real time on the instructor screen 7h, the instructors (A to C) can give advice while checking the contents displayed on the student answer display section 15h.
The reply message sent is, "No need!" The message is input in the input field 10d.

As shown in Fig. 23, the source code is corrected on the student terminal 2 side in response to the answer message from the instructor terminal 3. That is, the part where "print("c")" was entered in the student answer display section 15h on the instructor screen 7h in Fig. 22 is displayed as "print(c)" on the instructor screen 7i in Fig. 23.
Also, a message "The results have been output correctly. Thank you!" is sent from the student terminal 2 used by the student terminal g, and is displayed on the chat display section 17b of the instructor screen 7i.
Since the instructor screen 7i is provided with the verification sections (16c, 16d), the instructors (A to C) can input the values "1" and "5" into the verification section 16c and click the "Execute" button to perform verification. Here, as a result of the verification, "15" is displayed in the verification section 16d, and it can be seen that the answer to "1-2", "6", is not displayed.

Therefore, as shown in the chat display section 17b of FIG. 24, the instructor terminal 3 sends a message "
The message being sent is "No need!"
In response to the message from the instructor terminal 3, the source code is corrected on the student terminal 2 side. That is, the places where "a = input()" and "b = input()" were entered in the student answer display area 15h on the instructor screen 7i in Fig. 23 are displayed as "a = int(input())" and "b = int(input())" on the instructor screen 7j in Fig. 24.
Also, a message "The addition was correct! Thank you very much!" is sent from the student terminal 2 used by the student terminal g, and is displayed on the chat display section 17b of the teacher screen 7j.
When the problem is solved, by clicking the "Solved" button shown on the instructor screen 7j, the "Status" item in the student list display section 18a shown in FIG. 19 is changed to "No problem".

(Regarding scoring)
When the student g has resolved his/her doubts and completed writing the answer sheet, he/she clicks the button 8g shown in Figs. 13 to 18 to submit the answer sheet. Fig. 25 shows an image of the grading screen. Unlike the instructor screens (7h to 7j), the instructor screen 7k shown in Fig. 25 displays "grading mode" and "submission time" in the answer sheet comparison display section 19. In addition, a "redo" button and an "accept" button are displayed, and clicking each of them makes it possible to notify the student terminal 2 of an event. Note that, in grading, as in the case of assistance, verification using the verification section (16c, 16d) is possible.

In the online learning system of Example 2, a specific instructor terminal 3 is equipped with a system management means, which sets the attributes of a terminal connected to the system to either a student terminal 2 or an instructor terminal 3, switches any student terminal 2 to an instructor terminal 3, switches any instructor terminal 3 other than itself to a student terminal 2, and transmits the terminal attribute information to the server 4. The terminal connected to the system recognizes from the server 4 whether its own terminal is a student terminal 2 or an instructor terminal 3, and switches the display content on the learning work window screen.
FIG. 26 shows an image of the system management screen. As shown in FIG. 26, the instructor screen 7l displays a user authority display section 18f as a user list. The user authority display section 18f displays the items "Name", "ID" and "Authority", each of which is provided with a check box. For example, A is an instructor who is an "administrator", B is an "instructor" who is not an administrator, and a is set as a "student". In this state, a check is entered in the check box for student a, and by clicking, for example, the "instructor authority" button, the authority of student a can be changed to "instructor", and by clicking the "administrator authority" button, the authority of student a can be changed to "administrator".
In this way, by providing a means for switching terminal attributes, students with a high level of experience or proficiency can be given instructor authority and allowed to support other students, thereby achieving smoother support.

The present invention is useful for online learning systems that provide written exercises for programming learning, language learning, and the like.

1 Online learning system 2, 2a to 2d Student terminal 3 Instructor terminal 4 Server 5 Internet 6a to 6j Student screen 7a to 7l Instructor screen 8a to 8j Button 10a to 10d Input field 11a to 11f Selection field 12a, 12b Question creation display section 13a to 13c Video display section 13d Video call operation section 13e Shared screen display section 14 Exercise problem display section 15 Student answer creation display section 15a to 15h Student answer display section 16a to 16d Verification section 17a, 17b Chat display section 18a Participant list display section 18b, 18e Student information display section 18c Instructor list display section 18d Group list display section 18f User authority display section 19 Answer comparison display section 19a Instructor answer creation display section 21 Exercise means 21a Problem display means 21b Answer data generation means 21c Answer submission means 21d, 32e Answer verification means 22 Student support means 22a Student chat means 22b Instructor answer display means 22c Support request means 23, 33 Call means 31 Exercise problem provision means 32 Instructor support means 32a Instructor chat means 32b Periodic reception means 32c Instructor answer sharing means 32d Person in charge setting means 34 Marking means 41 Exercise control means 42 Support control means 43 Call control means 44 Account management means 45 Storage means a-g Students A-C Instructor

Claims (8)

An online learning system that transmits and receives data between at least one instructor terminal, at least one student terminal, and a server via a network, comprising:
The student terminal uploads the learning window screen data, in which the student creates answers to the descriptive exercises, to the server in real-time.
The teacher terminal downloads the learning task window screen data of a designated student terminal, or of student terminals belonging to a specific group, or of all student terminals from the server at a real-time cycle, and notifies the student of an event or transmits contents to the learning task window screen .
A specific instructor terminal sets the attributes of terminals connected to the system to either a student terminal or an instructor terminal, switches any student terminal to an instructor terminal, switches any instructor terminal other than itself to a student terminal, and transmits the terminal attribute information to the server.
An online learning system , characterized in that a terminal connected to the system recognizes from a server whether the terminal is a student terminal or a teacher terminal, and the display content of the learning task window screen is switched accordingly . The student terminal sends a support request event for the exercise to the server,
2. The online learning system according to claim 1, wherein the teacher terminal periodically receives information about the support request event of a designated student terminal, or of student terminals belonging to a specific group, or of all student terminals from a server. The teacher's terminal is
An exercise providing means for generating exercise data and transmitting the same to a server;
A teacher answer sharing means for generating teacher answer data, transmitting the data to a server, and requesting the server to transmit the teacher answer data to a designated student terminal, to student terminals belonging to a specific group, or to all student terminals;
3. The online learning system according to claim 1, further comprising a grading means for receiving student answer data transmitted from the student terminal to the server, grading the student answer, and transmitting the grading results to the server. The student devices are
a problem display means for receiving the exercise data from a server and displaying the exercise data on the learning window screen;
A means for generating student answer data based on the student answer inputted using the learning task window screen;
An answer submission means for transmitting the generated student answer data to a server;
4. The online learning system of claim 3, further comprising: The online learning system according to any one of claims 1 to 4, characterized in that the instructor terminal further comprises a setting means for setting or changing the student account or student account group to be handled for each instructor account. An online learning system according to any one of claims 1 to 5, characterized in that the student terminal and the instructor terminal further comprise chat means for inputting, outputting, and transmitting text messages between each other via a server. An online learning system according to any one of claims 1 to 6, characterized in that the student terminal and the instructor terminal further comprise a communication means for communicating between each other using voice or voice and video via a server. The online learning system according to any one of claims 1 to 7, characterized in that the student terminal and the instructor terminal further comprise an answer verification means for testing the created program in an interpreter or compile manner to confirm its operation when the descriptive exercise questions are programming questions.