JP2005352361A - Education system and program capable of selecting teaching material whose contents of low intelligibility by viewer have been explained - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an education system and program capable of properly selecting a teaching material whose contents of low intelligibility by a viewer have been explained. <P>SOLUTION: The education system of the present invention is equipped with an explanation module in which retrieval keys indicating explanation contents are stored corresponding thereto, teaching materials each having a plurality of explanation modules, an intelligibility input section which acquires intelligibility of contents currently explained, an intelligibility recording section which records the intelligibility inputted from the intelligibility input section is recorded while made to correspond to one of the explanation module, and a next teaching material selection section which selects a next teaching material by using the intelligibility recorded in the intelligibility recording part and a retrieval key made to further correspond to the explanation module made to correspond to the intelligibility. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an education system and a program capable of selecting a teaching material in which contents that are low in viewer understanding are explained. In particular, the present invention relates to an education system capable of selecting an appropriate teaching material that has been explained with respect to contents with a low level of understanding of the viewer by grasping the level of understanding of the viewer with respect to the explanation given to the viewer, and Regarding the program.

  In the past, viewers of video materials could not understand if they wanted to learn more about things that they could not understand by using video materials, etc. Look for the teaching material that explains the contents in more detail and watch it again. When searching for a teaching material, for example, a keyword related to a matter that could not be understood is determined, and the teaching material explaining the contents indicated by the keyword is selected. In addition, although the applicant does not grasp the technical literature showing such contents, for example, a database that stores the titles of teaching materials is prepared and a system for searching teaching materials with titles including keywords is used in libraries and the like. It has been.

  However, since it is often difficult for viewers to figure out what they were unable to understand, it was difficult to understand what they were able to understand. It was difficult to set. Therefore, it has been difficult to appropriately search for teaching materials that contain content that you want to learn further.

  In order to solve such a problem, the education system according to the first aspect of the present invention includes an explanation module in which search keys indicating explanation contents are stored in association with each other, a teaching material having a plurality of explanation modules, and viewing and listening. An understanding level input unit that acquires an understanding level of the content currently being explained from the person, and an understanding level recording unit that records the level of understanding input from the understanding level input unit in association with any of the explanation modules; An understanding level recorded in the understanding level recording unit, and a next teaching material selection unit that selects the next learning material using a search key further associated with the explanation module associated with the understanding level. It was. As described above, since the degree of understanding of each explanation content is grasped, the education system of the present invention can select an appropriate teaching material.

  The next learning material selection unit may search for an explanation module whose degree of understanding is lower than a predetermined value, and may select the next learning material using a search key associated with the explanation module. Thereby, the educational system of this invention can supplement the knowledge about the content with a low understanding level with respect to a viewer.

  The next learning material selection unit may select a learning material that includes more search keys identical to the search key in the explanation module included in the learning material to be searched. Thereby, the educational system of the present invention can easily search for appropriate teaching materials.

  The education system of this embodiment further includes a reproduction time recording unit that records a time when each of the explanation modules is displayed, and the understanding level recording unit receives the understanding level input from the understanding level input unit. The next teaching material selecting unit searches the understanding level recording unit for a time when the understanding level is lower than a predetermined value, and further reproduces the explanation module displayed at the time. You may search using a time recording part. As a result, even when the viewer views the teaching material while pausing, etc., the explanation module corresponding to the input comprehension level using the recorded time information after the viewing of the teaching material is finished. Can be specified.

  The next teaching material selection unit searches the understanding level recording unit for a time when the understanding level is lower than a predetermined value, and uses the playback time recording unit to display the explanation module that was displayed a predetermined time before the time. You may search. Thereby, even if the input of the understanding level is delayed, the education system of the present invention can search for an explanation module corresponding to the understanding level.

  The next learning material selection unit searches the learning material with each of the search keys associated with each explanation module, adds the weight of the search key to the searched learning material, and uses the learning material with the largest weight as the next learning material. You may have the search key weighting part to select. As a result, the educational system of the present invention can appropriately search for the next educational material related to the part with the lowest understanding.

  The search key weighting unit may weight the search key associated with the explanation module based on a value obtained by integrating the low understanding level with time in the explanation period of each explanation module. . Thereby, the search key weighting unit can appropriately give a weight indicating a low understanding level to each search key. The education system can appropriately search for teaching materials including knowledge about contents with low understanding.

  The search key weighting unit may weight each search key by a value obtained by dividing the low understanding level by time and dividing the value by the number of search keys. As a result, the search key weighting unit can give a large weight to the explanation module having a small number of search keys, so that the education system appropriately applies the teaching material including knowledge about the content having a low understanding level. You can search.

  The explanation module may store explanation contents by voice. In this case, the explanation module may further store the explanation contents by video. Thus, the existing video can be used in the education system of the present invention. Alternatively, the explanation module may be one or more presentation software screens that are sequentially played according to the explanation of the presenter and the voice spoken by the presenter when the screen is displayed.

  According to a second aspect of the present invention, there is provided a program for operating an education system including an explanation module in which a search key indicating the explanation content is stored in association with each other and a teaching material having a plurality of explanation modules. Understanding level input means for acquiring the understanding level of the content currently being explained, understanding level recording means for recording the understanding level input from the understanding level input means in association with any of the explanation modules, and understanding level Using the understanding level recorded in the recording means and the search key further associated with the explanation module associated with the understanding level, the educational system functions as the next educational material selection means for selecting the next educational material. .

  The next learning material selection means may select a learning material that includes more search keys identical to the search key in the explanation module included in the learning material to be searched.

  The educational system is further functioned as a reproduction time recording means for recording the time when each of the explanation modules is displayed, and the next teaching material selecting means uses the understanding degree recording means for the time when the understanding level is lower than a predetermined value. The explanation module displayed at the time may be searched using the reproduction time recording means.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the claimed invention, and all the combinations of features described in the embodiments are not included in the invention. It is not always essential for development means.

  FIG. 1 shows a configuration of an education system 100 in the present embodiment. The education system 100 according to the present embodiment includes an understanding level input unit 50, a teaching material database 62, a display unit 66, a speaker 68, a computer 70, and a recording medium 80. The computer 70 is electrically connected to the understanding level input unit 50, the display unit 66, the speaker 68, and the teaching material database 62.

  Here, if a viewer wants to learn more about things that have not been able to be understood by using a video material, the viewer of the video material can understand. Look for materials that explain more about what was missing, and watch it again. When searching for a teaching material, for example, a keyword related to a matter that could not be understood is determined, and the teaching material explaining the contents indicated by the keyword is selected. However, since it is often difficult for viewers to figure out what they were unable to understand, it was difficult to understand what they were able to understand. It was difficult to set. Therefore, an object of the present invention is to provide an education system 100 that solves such problems.

  The learning material database 62 stores a plurality of learning materials, and the learning materials have a plurality of explanation modules. The explanation module is, for example, a sound and an image explaining the explanation contents, and a search key indicating the explanation contents is stored in the explanation module in association with it. The explanation module of this example is, for example, one or more presentation software screens that are sequentially played in accordance with the explanation of the presenter and the voice spoken by the presenter when the screen is displayed. Here, an example of the presentation software is PowerPoint (registered trademark), and the explanation module in this case is described by the explainer when each frame displayed in PowerPoint (registered trademark) and each frame is displayed. It is voice. As a method for creating the explanation module, a plurality of frames explained about the same content and a voice spoken by the presenter when a plurality of frames are displayed may be created as one explanation module.

  The search key is a keyword related to the explanation content, and is determined in advance by, for example, the administrator of the education system 100 or the creator of the teaching material. As a search key, at least one keyword is associated with one explanation module. In this example, the search key is stored in the teaching material database 62 in association with the electronic data indicating the voice and image of the explanation module.

  The computer 70 includes an understanding level recording unit 52, a reproduction time recording unit 54, a time acquisition unit 56, a reproduction unit 64, and a next teaching material selection unit 58. A viewer who uses the education system 100 operates the computer 70 to select a teaching material to be viewed. The playback unit 64 reads out the teaching material selected by the viewer from the teaching material database 62, plays back the video of each explanation module and displays it on the display unit 66, and uses the speaker 68 for the sound corresponding to each explanation module. To play.

  Then, the viewer operates the understanding level input unit 50 while viewing the explanation reproduced on the display unit 66 and the speaker 68. Thereby, the understanding level input unit 50 acquires the understanding level of the content currently being explained from the viewer. The understanding level input unit 50 of this example acquires an understanding level corresponding to the level of understanding of the viewer from the viewer. For example, the understanding level input unit 50 has buttons that are predetermined according to the degree of understanding level, and the understanding level input unit 50 acquires the understanding level when the viewer presses the button. The understanding level recording unit 52 records the understanding level input from the understanding level input unit 50 in association with any of the explanation modules.

  The time acquisition unit 56 counts the time and provides the measured time to the understanding level recording unit 52, the reproduction time recording unit 54, and the reproduction unit 64. The reproduction time recording unit 54 records the time when each of the explanation modules is displayed. The reproduction time recording unit 54 of this example records each of the time when the display of the description module is started and the time when the display of the description module is ended as the time when each of the description modules is displayed.

  The understanding level recording unit 52 stores the understanding level input from the understanding level input unit 50 in association with the time when the understanding level is input. Here, the understanding level recording unit 52 records the understanding level input from the understanding level input unit 50 in association with the time when the input of the understanding level is started and the time when the input is completed.

  The next learning material selection unit 58 uses the understanding level recorded in the understanding level recording unit 52 and the search key further associated with the explanation module associated with the understanding level to assign the next learning material to the learning material database 62. Select from. As described above, the education system 100 of the present invention can select an appropriate teaching material by grasping the degree of understanding of each explanation content. In addition, the next teaching material selection unit 58 in this example searches for an explanation module whose degree of understanding is lower than a predetermined value, and selects the next teaching material from the teaching material database 62 using a search key associated with the explanation module. To do. Thereby, the knowledge about the content with a low understanding degree can be supplemented with respect to a viewer. Further, the next teaching material selection unit 58 of the present example searches the understanding level recording unit 52 for the time when the understanding level is lower than a predetermined value, and further displays the explanation module displayed at that time as the reproduction time recording unit. Use 54 to search. As a result, even when the viewer views the teaching material while pausing, etc., the explanation module corresponding to the input comprehension degree using the recorded time information after the viewing of the teaching material is finished. Can be specified.

  Here, the next teaching material selection unit 58 has a search key weighting unit 60. When the next learning material is selected from the learning material database 62, the search key weighting unit 60 searches the learning material database 62 for the learning material using each of the search keys associated with each explanation module. The search key weighting unit 60 of this example adds the weights of these search keys to the searched learning material, and selects the learning material having the largest weight from the learning material database 62 as the next learning material. Thereby, the next learning material selection part 58 can search the next learning material relevant to the location with the lowest understanding appropriately. Details of the operation of the search key weighting unit 60 will be described later.

  As described above, according to the present invention, the next teaching material selection unit 58 performs the search key further associated with the understanding level recorded in the understanding level recording unit 52 and the explanation module associated with the understanding level. Since the next teaching material is selected using, it is possible to select an appropriate teaching material after grasping the degree of understanding of each explanation content. In addition, since the next teaching material is selected using the search key associated with the explanation module whose understanding level is lower than a predetermined value, it is possible to supplement knowledge about the content with low understanding level. Then, the next learning material selection unit 58 searches the understanding level recording unit 52 for the time when the understanding level is lower than the predetermined value, and further uses the reproduction time recording unit 54 to display the explanation module displayed at this time. Therefore, even if the viewer watches the teaching material while pausing, etc., it uses the recorded time information after the viewing of the teaching material to support the input comprehension level. An explanation module can be specified.

  The recording medium 80 stores an understanding level input unit, an understanding level recording unit, a reproduction time recording unit, and a next teaching material selection unit as programs installed and executed in the education system 100. Each means stored in the recording medium 80 causes each corresponding member to function. The contents that each means stored in the recording medium 80 functions are the same as the operation of each member described in this figure, so that the description thereof is omitted. Here, the recording medium 80 may be, for example, an optical recording medium such as DVD or PD, a magneto-optical recording medium such as MD, a tape medium, a magnetic recording medium, or a semiconductor recording device.

  In this example, the electronic data indicating the explanation contents of the explanation module is stored in the teaching material database 62 for selecting the next teaching material. In other examples, for example, a flexible disk, a CD-ROM, a DVD -It may be recorded on a recording medium different from the teaching material database 62, such as a ROM. In this case, the teaching material database 62 stores the name of the description module, the index indicating the location of the data of the description module, and the like instead of the audio or image electronic data indicating the description contents, and the search key is The name of the explanation module and the index indicating the location of the explanation module data are stored in association with each other. In this case, the search key may be stored in a recording medium in which electronic data indicating the contents of explanation is stored, or may be stored in a recording medium different from the recording medium in which the electronic data is stored. Then, the viewer causes the computer 70 included in the education system 100 to read the recording medium storing the electronic data and the search key. Thereby, since the computer 70 can acquire the search key included in the learning material that the viewer desires to view, the education system 100 of the present invention uses the acquired search key to acquire the next learning material as the learning material database. 62 can be selected appropriately.

  In still another example, the educational material may be a video educational material. In this case, the explanation module is a part of the video stream in the video teaching material. Here, as a method of creating an explanation module, a portion of a video stream that has been explained for the same content may be created as one explanation module. The search key in this case is indirectly associated with the explanation module. For example, when the teaching material is recorded on a video tape, the name of each explanation module included in the video tape is predetermined by, for example, an administrator of the education system 100, and the search key is a video tape on which the explanation content is recorded. Is stored in advance in association with the name of the description module. Thereby, the educational system 100 of this invention can utilize the existing video teaching material. When the video teaching material is recorded on a CD-ROM, DVD-ROM, or the like, the search key may be stored in the recording medium in association with the index of each explanation module. In this case, the search key and the index of the explanation module are stored in advance in a recording area different from the recording area in which the explanation content is recorded. In this case, the index of the explanation module may be a track number of the explanation module in the recording medium.

  In still another example, the explanation module may be a slide or an OHP (overhead projector) film. Also in this case, one explanation module may be a plurality of slides or an OHP sheet. Then, the name of the explanation module of each slide or each OHP sheet is determined in advance, and a file storing a search key is created in association with each explanation module. Can be used.

  FIG. 2 is a flowchart showing an example of the operation of the education system 100. The reproduction unit 64 reads the learning material from the learning material database 62, and the display unit 66 displays a video showing the explanation contents of each explanation module included in the learning material to the viewer (S100). In this case, the reproducing unit 64 causes the speaker 68 to reproduce the sound indicating the explanation content. Then, the reproduction time recording unit 54 records the display time when each of the explanation modules is displayed (S105).

  During the reproduction, the understanding level input unit 50 acquires the understanding level of the content currently being explained from the viewer. Then, the understanding level recording unit 52 records the understanding level input from the understanding level input unit 50 in association with any of the explanation modules. The understanding level recording unit 52 of the present example records the understanding level input from the understanding level input unit 50 in association with the time when it is input (S110).

  Here, when the description of all the explanation modules is not completed (S115: NO), the flowchart proceeds to step S100 again, and the reproducing unit 64 reproduces the next explanation module. Then, the understanding level recording unit 52 acquires the understanding level of the content displayed on the display unit 66. When the description of all the explanation modules is completed (S115: YES), the flowchart proceeds to step S120.

  Next, the next learning material selection unit 58 searches for an explanation module having an understanding level lower than a predetermined value, and specifies a search key associated with the explanation module (S120). In this case, the next learning material selection unit 58 searches the understanding level recording unit 52 for a time when the understanding level is lower than a predetermined value, and searches the reproduction time recording unit 54 for the explanation module displayed at this time. Then, the next learning material selection unit 58 selects the next learning material using the search key (S125).

  When the next learning material is selected, the education system 100 displays the selected next learning material to the viewer. Thereby, the viewer can supplement the knowledge about the content with a low understanding level.

  FIG. 3 shows an example of data stored in the teaching material database 62. The learning material database 62 stores each explanation module included in the learning material in association with the learning material. The learning material database 62 stores search keys included in each explanation module in association with each explanation module.

  The explanation module of this example is an image showing each frame of PowerPoint (registered trademark) and a sound when each frame is explained to the explainer, and the teaching material database 62 corresponds to the name of the teaching material and the index of the explanation module In addition, a search key for each explanation module is stored. In this example, the index of the explanation module is the number of pages of the frame. Thus, since the explanation module of this example includes each frame of PowerPoint (registered trademark), the administrator of the education system 100 can easily use the search key by using the phrase included in each frame as the search key. Can be created. In this case, the search key may be automatically generated from a title attached to each frame, for example. The teaching material database 62 stores in advance reproduction times, which are times necessary for explanation of each explanation module, in association with each explanation module.

  FIG. 4 shows an example of data stored in the understanding level recording unit 52. The understanding level recording unit 52 of this example records the time when the input of the understanding level is started and the time when the input of the understanding level is ended as the time when the understanding level is acquired.

  Here, the understanding level recording unit 52 stores a value indicating a low level of understanding input by the understanding level input unit 50. The understanding level input unit 50 of this example has, for example, two buttons according to the understanding level. Then, if the content currently being explained is not well understood, the viewer presses a button indicating that the viewer cannot understand much, and the understanding level input unit 50 sets the understanding level indicating that the viewer cannot understand well. get. Similarly, when the contents explained are not understood at all, the understanding level input unit 50 acquires an understanding level indicating that the viewer cannot understand at all by pressing a button indicating that the viewer cannot understand at all. To do. The understanding level recording unit 52 stores the understanding level acquired in this manner in association with the time when the understanding level is input.

  The understanding level recording unit 52 of this example stores a larger value as the understanding level is lower. For example, when the level of understanding is low, the level of understanding is indicated by B, and “0.5” is stored as a value indicating the low level of level of understanding. When the level of understanding is not understood at all, the level of understanding is indicated by C. “1.0” is stored as a value indicating the low level. In this embodiment, the low level of understanding when it can be understood is indicated by “0”. In this example, the degree of understanding determined to have been understood is not stored, but in other examples, a value indicating the low degree of understanding may be stored.

  FIG. 5 shows an example of data stored in the reproduction time recording unit 54. The reproduction time recording unit 54 records the time when each of the explanation modules is displayed in association with the name of the teaching material. Here, the reproduction time recording unit 54 records each time when the explanation of the explanation module starts and ends in association with the name of the explanation module. Since the playback time recording unit 54 records the disclosure time and end time of the explanation module in this way, even if the viewer views the educational material while pausing, the recording is performed after the viewing of the educational material is finished. The explanation module corresponding to the input comprehension level can be specified using the information of the entered time.

  FIG. 6 is a flowchart showing an example of detailed operation of step S120. When the display of the learning material is completed, the next learning material selecting unit 58 refers to the understanding level recording unit 52 (see FIG. 4). Here, when the understanding level stored in the understanding level recording unit 52 is lower than the predetermined understanding level (S200: YES), the next teaching material selection unit 58 searches for an explanation module with a low understanding level (S205). ). Here, the next teaching material selection unit 58 refers to the time when the understanding level lower than the predetermined understanding level is recorded in the understanding level recording unit 52, and then the playback time recording unit 54 sets the predetermined level. By searching for an explanation module including a time when an understanding level lower than the understanding level is input, an explanation module having a low understanding level is selected. Then, the next learning material selection unit 58 refers to the learning material database 62 (see FIG. 3) and specifies a search key included in the explanation module having a low understanding level (S210).

  Here, FIG. 7 is a diagram for explaining a low understanding level. FIG. 7A shows the relationship between the low understanding level and the time when the explanation module is displayed. In this example, each of the times 500, 502, and 504 indicates a period during which the explanation modules 1, 2, and 3 are reproduced and displayed. In the example of this figure, each explanation module stores an index number instead of the explanation module name.

  The viewer of the present invention inputs the degree of understanding at a point where he / she thinks he / she cannot understand. Therefore, it is considered that the input understanding level and the input length of the understanding level quantitatively indicate the degree of understanding of the viewer with respect to the explained contents. That is, the area surrounded by the low understanding level and the time when the understanding level is input indicates the level of low understanding level of the viewer, and the low understanding level and the understanding level are input. The larger the area surrounded by the time, the more viewers can assume that the explanation is not understood. The area surrounded by the time when the understanding level is input and the low understanding level is equal to the value obtained by integrating the low understanding level with time. In the example of this figure, the areas 506 to 510 surrounded by the low understanding level and the time are indicated by hatching.

  Therefore, the search key weighting unit 60 of the present invention integrates the low understanding level with the elapsed time for each explanation module (S215), and calculates an integral value. Thereby, for each explanation module, a value indicating the understanding level of the viewer who has viewed the explanation is acquired.

  When searching for the next learning material using the search key, it is desirable to be able to select a learning material that has been explained much about the search key with a lower level of viewer understanding. Therefore, in the present invention, the search key is weighted. Since one explanation module may include various numbers of search keys, the search key weighting unit 60 of this example uses the value obtained by integrating the low level of understanding over time as the number of search keys. Each search key is weighted by the divided value. In this example, each search key is weighted by adding the value obtained by integration for each search key (S220).

  FIG. 7B shows an example of a weighted search key. First, in the explanation module 1, a value obtained by integrating the low degree of understanding with time 500 is obtained. In this case, a value “60” obtained by integrating the low understanding level with time is obtained by multiplying the low understanding level “1.0” by the time “60 seconds” during which the understanding level was input. In this case, since the explanation module 1 includes only “A” as a search key, a value obtained by dividing the value “60” obtained by integrating the low understanding level with time by 1 is obtained. Similarly, in the explanation module 2, the low understanding level is integrated by multiplying the low understanding level “0.5” by the time “140 seconds” in which the understanding level was input. The value “70” is obtained. Here, since the explanation module 2 includes the search keys B and C, when the value obtained by integrating the low understanding level with time is divided by the number of search keys “2”, the search keys B and C For each, a value “35” indicating the weight of the search key is obtained. In this way, the weight of each search key is calculated for each explanation module.

  If the calculation of the weights has not been completed for all the explanation modules having a low understanding level (S225: NO), the process proceeds to step S200, and the above processing is repeated. When the calculation of the weights for all the explanation modules having a low degree of understanding is completed (S225: YES), the search key weighting unit 60 searches for the teaching materials with each of the search keys associated with each explanation module, and the retrieved teaching materials. The weight of the search key is added to (S230). Thereby, as shown in FIG.7 (b), the weight of each search key is calculated. In this way, the search key weighting unit 60 of the present invention is associated with the explanation module based on the value obtained by integrating the low understanding level with the time in the explanation period of each explanation module. The search key can be weighted.

  FIG. 8 is a flowchart showing an example of detailed operation of step S125. Once the weight of each search key is calculated, the search key weighting unit 60 next selects a learning material including the search key (S300). In this case, the search key weighting unit 60 selects a learning material by specifying a search key corresponding to the explanation module in the learning material database 62 (see FIG. 3). FIG. 9 shows an example of the selected teaching material.

  Here, the search key weighting unit 60 selects a learning material that includes more search keys identical to each search key. Further, the search key weighting unit 60 calculates the total weight of each learning material by adding the weight of the search key to the number of each search key (S305). Then, the learning material with the largest weight is selected as the next learning material (S310). In this example, the search key weighting unit 60 selects a learning material having a relatively large explanation ratio of the explanation module including the selected search key among the explanation modules of the learning material.

  Specifically, the search key weighting unit 60 refers to the learning material database 62 and calculates the total reproduction time required for the description of the learning material and the reproduction time required for the description of each explanation module included in the learning material. Then, for each explanation module, the search key weighting unit 60 multiplies the value obtained by dividing the reproduction time of the explanation module by the sum of the reproduction times of each explanation module and the weight of the search key calculated earlier, Calculate the value divided by the number contained. By summing up the values obtained by performing the above calculation for each explanation module, the next teaching material selection unit 58 selects a teaching material having a relatively large explanation ratio of the explanation module including the selected search key. To do.

  For example, the teaching material named “All of OO” shown in FIG. 9 has a total playback time of 20 minutes, and the playback time of the explanation module 2 is 5 minutes. The explanation module 2 includes search keys A, B, and C. Therefore, for explanation module 2, 60 (weight of search key A) × 5 minutes (reproduction time of explanation module 2) / 20 minutes (overall explanation time) × 1/3 (number of search keys) +125 (search key) (Weight of B) × 5 minutes (reproduction time of explanation module 2) / 20 minutes (overall explanation time) × 1/3 (number of search keys) +125 (weight of search key C) × 5 minutes (of explanation module 2) (Reproduction time) / 20 minutes (overall explanation time) × 1/3 (number of search keys) is calculated to obtain the value “25.8”. The same calculation is performed for the explanation modules 1, 3, and 4, and when the total value is obtained, “81.7” is obtained as the sum of the weights. On the other hand, the teaching material named “well understood ΔΔ” includes search keys A to D, but also includes other search keys F to L. If the same calculation is performed for this teaching material, “28.0” is obtained as the sum of the weights. As a result of these calculations, “all of XX” is selected as the teaching material with the highest weight. As described above, since the teaching material having a large explanation ratio of the explanation explanation module including the search key is selected, the teaching system 100 of the present invention can provide the viewer with the teaching material with less useless explanation.

  First, the relation between the low understanding level and the time when the explanation module is displayed has been described with reference to FIG. 7A. However, when the viewer inputs the understanding level, the explanation module is reproduced and displayed. In some cases, the degree of understanding may not be input so that it falls within a certain time. For example, there may be a delay in inputting the degree of understanding. Therefore, the next teaching material selection unit 58 searches the understanding level recording unit 52 for a time when the degree of understanding is lower than a predetermined value, and displays the explanation module displayed only a predetermined time before this time as a reproduction time recording. Search using the unit 54. Hereinafter, a method for calculating the predetermined time will be described.

  FIG. 10 is a diagram for explaining the delay in understanding level input. In this example, the areas of the regions 652 to 662 and the regions 664 to 672 indicated by diagonal lines correspond to values obtained by integrating the low level of understanding with time. FIG. 10A shows an example of a delay in input of the understanding level. In the example of this figure, each module is input with a delay with respect to the time 600 to 606 when each module is described. In this case, the value obtained by integrating the low level of understanding with time varies depending on the timing at which the level of understanding is input. For example, in the example of this figure, the value obtained by integrating the low understanding level with the time at the time 600 when the explanation module 1 is explained becomes a value indicating the area of the region 652, and at the time 602 when the explanation module 2 is explained. A value obtained by integrating the low understanding level with time is a total value of the areas of the region 654 and the region 656.

  Here, the delay in the input of understanding level is due to the presence of various viewers, such as viewers who input understanding level after thinking in detail, and viewers who input understanding level as soon as they do not understand It is thought that. That is, there is an individual difference in the delay in timing when the viewer inputs the degree of understanding. However, even when the input timing of the understanding level is delayed, it is considered that the weight of the search key having a lower understanding level of the viewer is larger than that of the other search keys.

  Therefore, when searching for the next teaching material, the next teaching material selection unit 58 of the present example shifts the level of understanding level of each explanation module while shifting the timing when the understanding level is input before the input timing. The integrated value is calculated, and the total weight of each search key is calculated. Then, the next learning material selection unit 58 sets a predetermined time as a time when the weighted search key value is shifted so as to be most biased in a certain search key. In this case, the search key with the least weight is considered to indicate the search key that the viewer could not understand most. As a result, even when there is an individual difference in the timing of inputting the degree of understanding, the predetermined time can be set so that the weight of the search key that was most difficult for the viewer to understand is maximized.

  FIG. 10B shows an example when the timing at which the degree of understanding is input is shifted. For example, in the example of this figure, when the timing is shifted by time Δt, the value obtained by integrating the low understanding level with time at time 600 becomes the value indicated by the area of the region 664, and the low understanding level at time 602. Is a value indicated by the area of the region 666. In this way, when the timing is shifted by the time Δt, the next teaching material selection unit 58 calculates a value obtained by integrating the degree of understanding with time for each explanation module. Then, the next learning material selection unit 58 calculates the total weight of the search keys included in each explanation module. In this case, the next learning material selection unit 58 sets the time shifted so that the total value of the predetermined search keys is maximized as the predetermined time. Thereby, in the educational system 100 of this invention, even if it is a case where the input of an understanding level is overdue, the description module corresponding to the understanding level can be searched.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements are also included in the technical scope of the present invention.

The structure of the education system 100 in this embodiment is shown. 5 is a flowchart showing an example of the operation of the education system 100. An example of data stored in the teaching material database 62 is shown. An example of data stored in the understanding level recording unit 52 is shown. An example of data stored in the reproduction time recording unit 54 is shown. It is a flowchart which shows an example of the detailed operation | movement of step S120. It is a figure explaining the low degree of understanding. (A) shows the relationship between the low understanding level and the time when the explanation module is displayed. (B) shows an example of the result of weighting a weighted search key. It is a flowchart which shows an example of the detailed operation | movement of step S125. An example of the selected teaching material is shown. It is a figure explaining the delay of input of an understanding level. (A) is a figure which shows an example of the delay of the input of an understanding level. (B) is a figure which shows an example at the time of shifting the timing by which the degree of understanding was input.

Explanation of symbols

50 ... Understanding level input unit, 52 ... Understanding level recording unit, 54 ... Reproduction time recording unit, 56 ... Time acquisition unit, 58 ... Next teaching material selection unit, 60 ... Search key Weighting unit, 62 ... teaching material database, 64 ... playback unit, 66 ... display unit, 68 ... speaker, 70 ... computer, 80 ... recording medium, 100 ... education system

Claims (14)

An explanation module in which a search key indicating the explanation content is stored in association with each other;
A teaching material having a plurality of the explanation modules;
An understanding level input unit that obtains an understanding level of the content currently being explained from the viewer;
An understanding level recording unit for recording the understanding level input from the understanding level input unit in association with any of the explanation modules;
The next learning material selection unit that selects the next learning material using the understanding level recorded in the understanding level recording unit and the search key further associated with the explanation module associated with the understanding level. Education system with   The said next learning material selection part searches the description module whose said understanding level is lower than predetermined value, and selects the said next learning material using the search key matched with the said description module. Education system.   The education system according to claim 2, wherein the next learning material selection unit selects a learning material that includes more search keys identical to the search key in an explanation module included in the learning material to be searched. A playback time recording unit for recording the time when each of the explanation modules is displayed;
The understanding level recording unit records the understanding level input from the understanding level input unit in association with the time when input,
The next teaching material selection unit searches the understanding level recording unit for a time when the understanding level is lower than a predetermined value, and further uses the reproduction time recording unit to display the explanation module displayed at the time. The education system according to claim 3 for searching.   The next teaching material selection unit searches the understanding level recording unit for a time when the understanding level is lower than a predetermined value, and displays the explanation module displayed for a predetermined time before the playback time as the reproduction time. The education system according to claim 4, wherein searching is performed using a recording unit.   The next learning material selection unit searches the learning material by each of the search keys associated with each of the explanation modules, adds the weight of the search key to the searched learning material, and selects the learning material with the highest weight. The education system according to claim 5, further comprising a search key weighting unit that is selected as a teaching material.   The search key weighting unit weights a search key associated with the explanation module based on a value obtained by integrating the low understanding level with time in the explanation period of each explanation module. Item 7. The educational system according to Item 6.   The education system according to claim 7, wherein the search key weighting unit weights each search key by a value obtained by dividing a low understanding level by time and dividing the value by the number of search keys.   The education system according to claim 1, wherein the explanation module stores voice explanation contents.   The education system according to claim 9, wherein the explanation module further stores video explanation contents. The education system according to claim 1, wherein the explanation module is one or more presentation software screens that are sequentially reproduced in accordance with an explanation by the presenter and voices spoken by the presenter when the screen is displayed. A program for functioning an education system comprising an explanation module in which search keys indicating explanation contents are stored in association with each other and a teaching material having a plurality of the explanation modules,
Understanding level input means for acquiring the level of understanding of the content currently being explained from the viewer,
Understanding level recording means for recording the understanding level input from the understanding level input unit in association with any of the explanation modules;
And selecting the next teaching material using the understanding level recorded by the understanding level recording means and the search key further associated with the explanation module associated with the understanding level. A program that makes the education system function as a means.   The program according to claim 12, wherein the next learning material selection unit selects a learning material that includes more search keys identical to the search key in an explanation module included in the learning material to be searched. As the reproduction time recording means for recording the time when each of the explanation modules is displayed, the education system is further functioned,
The next learning material selecting means searches the understanding level recording means for a time when the understanding level is lower than a predetermined value, and further, the reproduction time recording means is used to search for the explanation module displayed at the time. The program according to claim 13, wherein the program is searched using.

Images