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CN112102130B - Intelligent auxiliary lesson preparation and teaching system and method for teachers - Google Patents

Intelligent auxiliary lesson preparation and teaching system and method for teachers Download PDF

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CN112102130B
CN112102130B CN202011020341.7A CN202011020341A CN112102130B CN 112102130 B CN112102130 B CN 112102130B CN 202011020341 A CN202011020341 A CN 202011020341A CN 112102130 B CN112102130 B CN 112102130B
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樊星
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Abstract

The invention discloses an intelligent teacher auxiliary lesson preparation teaching system, which comprises a portable teacher end and a background server, wherein: the portable teacher end is used for being carried by a teacher and used for uploading knowledge points to be taught by the teacher in the future to the background server; the background server is used for determining the recommended teaching time length of the knowledge point according to the historical learning result of the students on the knowledge point and sending the recommended teaching time length of the knowledge point to the portable teacher end; the portable teacher end is further used for outputting the recommended teaching time length of the knowledge point for the teacher to adjust, and obtaining the adjusted recommended teaching time length of the knowledge point; and the portable teacher end is used for starting timing when receiving an instruction which is input by the teacher and used for teaching the knowledge point, and executing reminding operation when the recorded time length reaches a first preset time length.

Description

智能教师辅助备课授课系统和方法Intelligent teacher-assisted lesson preparation and teaching system and method

技术领域technical field

本发明涉及智能技术领域，特别涉及智能教师辅助备课授课系统和方法。The invention relates to the field of intelligent technology, in particular to an intelligent teacher-assisted lesson preparation and teaching system and method.

背景技术Background technique

目前，将智能化技术应用到教学过程中，提高教学质量，已经成为了各个学校、培训机构的技术流行趋势。但是，对于每个知识点的讲授时长的设定，依然是依赖教师的主观判断，如果教师认为某个知识点比较难，就多花时间讲授；认为某个知识点简单，就少花时间讲授，这种对知识点的讲授时长的设定，完全依赖教师的经验，而且，当教师的教授经验较少时，这种主观设定可能并不合理，可能造成较难知识点的讲授时间过长，压缩其它知识点的讲授时长，从而从整体上影响对学生的知识讲授。另外，教师在讲授知识点时，也可能会受主观情绪、授课环境等的影响，不能合理的把控讲授时长，所以经常会出现学校的教师在下课以后依然霸占学生的休息时间来讲课，教师的时间管理做的比较差。At present, the application of intelligent technology to the teaching process to improve the quality of teaching has become a popular technology trend in various schools and training institutions. However, the setting of the teaching time for each knowledge point still depends on the subjective judgment of the teacher. If the teacher thinks a certain knowledge point is difficult, he will spend more time teaching; if he thinks a certain knowledge point is simple, he will spend less time teaching. , the setting of the teaching time for knowledge points is completely dependent on the teacher's experience, and when the teacher has less teaching experience, this subjective setting may be unreasonable, which may cause the teaching time of difficult knowledge points to be too long. Longer, compress the teaching time of other knowledge points, thus affecting the knowledge teaching to students as a whole. In addition, when teachers teach knowledge points, they may also be affected by subjective emotions, teaching environment, etc., and cannot reasonably control the teaching time. Therefore, it often happens that school teachers still occupy students' rest time after class to teach. Teachers poor time management.

因此，急需一种能够智能的分析知识点的授课时长，使得授课时长更加合理，符合学生对知识点的实际接受能力，能够协助教师做授课时间管理的技术。Therefore, there is an urgent need for a technology that can intelligently analyze the teaching time of knowledge points, make the teaching time more reasonable, conform to the students' actual ability to accept knowledge points, and can assist teachers in teaching time management.

发明内容SUMMARY OF THE INVENTION

本发明实施例提供了智能教师辅助备课授课系统和方法。Embodiments of the present invention provide an intelligent teacher-assisted lesson preparation and teaching system and method.

本发明实施例提供了一种智能教师辅助备课授课系统，包括便携式教师端和后台服务器，其中：The embodiment of the present invention provides an intelligent teacher-assisted lesson preparation and teaching system, including a portable teacher terminal and a background server, wherein:

便携式教师端，供教师随身携带使用，用于向后台服务器上传教师未来要讲授的知识点；Portable teacher terminal, for teachers to carry and use, to upload the knowledge points to be taught by teachers in the future to the background server;

后台服务器，用于根据学生对知识点的历史学习结果确定知识点的推荐讲授时长，将知识点的推荐讲授时长发送给便携式教师端；The background server is used to determine the recommended teaching duration of the knowledge point according to the historical learning results of the knowledge point by the students, and send the recommended teaching duration of the knowledge point to the portable teacher terminal;

便携式教师端，还用于将知识点的推荐讲授时长输出供教师调整，获得知识点的调整后推荐授课时长；The portable teacher terminal is also used to output the recommended teaching duration of knowledge points for teachers to adjust, and obtain the recommended teaching duration after the adjustment of knowledge points;

便携式教师端，用于在接收到教师输入的知识点已经开始讲授的指令时，开始计时，并在所记时长达到第一预设时长时执行提醒操作；第一预设时长为知识点的调整后推荐授课时长减去第二预设时长，第二预设时长小于第一预设时长。The portable teacher terminal is used to start timing when receiving the instruction that the knowledge point input by the teacher has started to teach, and perform a reminder operation when the recorded time reaches the first preset time; the first preset time is the adjustment of the knowledge point The recommended teaching duration is subtracted from the second preset duration, and the second preset duration is less than the first preset duration.

在一个实施例中，根据学生对知识点的历史学习结果确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the historical learning results of the knowledge point by the students, including:

获取知识点对应的历史测试试题做题结果；Obtain the results of the historical test questions corresponding to the knowledge points;

根据知识点对应的历史测试试题做题结果确定知识点的难度值；Determine the difficulty value of the knowledge point according to the results of the historical test questions corresponding to the knowledge point;

根据知识点的难度值确定知识点的推荐讲授时长。The recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point.

在一个实施例中，根据知识点对应的历史测试试题做题结果确定知识点的难度值，包括：In one embodiment, the difficulty value of the knowledge point is determined according to the results of the historical test questions corresponding to the knowledge point, including:

根据知识点对应的历史测试试题的得分情况，计算知识点的难度值，所采用的计算公式如下公式(1)：According to the score of the historical test questions corresponding to the knowledge point, the difficulty value of the knowledge point is calculated. The calculation formula used is as follows: formula (1):

Figure BDA0002700415800000021
Figure BDA0002700415800000021

其中，Za表示第a个知识点的难度值；Na,i表示第i个以往学生对第a个知识点对应的历史测试试题的得分值；Ma表示第a个知识点对应的历史测试试题的满分值；n表示做过第a个知识点对应的历史测试试题的以往学生的总数目。Among them, Z a represents the difficulty value of the knowledge point a; Na ,i represents the score value of the historical test question corresponding to the knowledge point a of the ith past student; Ma represents the corresponding value of the knowledge point a The full score of the history test questions; n represents the total number of past students who have done the history test questions corresponding to the ath knowledge point.

在一个实施例中，根据知识点的难度值确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point, including:

根据知识点的难度值和教师对以往学生讲授知识点的讲授时长，计算知识点的推荐讲授时长，所采用的计算公式如下公式(2)：According to the difficulty value of the knowledge point and the teaching time of the teacher to the previous students to teach the knowledge point, the recommended teaching time of the knowledge point is calculated. The calculation formula used is the following formula (2):

Figure BDA0002700415800000031
Figure BDA0002700415800000031

其中，Ta表示第a个知识点的推荐讲授时长；Ta,r表示以往第r次讲授第a个知识点的讲授时长；K表示第a个知识点的以往讲授总次数；m表示知识点的总个数；Zmax表示m个知识点中难度值的最大值。Among them, T a represents the recommended teaching duration of the a-th knowledge point; T a, r represents the teaching time of the previous r-th teaching of the a-th knowledge point; K represents the total number of previous lectures of the a-th knowledge point; m represents the knowledge The total number of points; Z max represents the maximum difficulty value among m knowledge points.

在一个实施例中，根据知识点的难度值确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point, including:

步骤A1：根据知识点的难度值和教师对以往学生讲授知识点的讲授时长，计算知识点的初始推荐讲授时长，所采用的计算公式如下公式(2)：Step A1: Calculate the initial recommended teaching time of the knowledge point according to the difficulty value of the knowledge point and the teaching time of the teacher to the previous students to teach the knowledge point. The calculation formula used is as follows: Formula (2):

Figure BDA0002700415800000032
Figure BDA0002700415800000032

其中，Ta表示第a个知识点的初始推荐讲授时长；Ta,r表示以往第r次讲授第a个知识点的讲授时长；K表示第a个知识点的以往讲授总次数；m表示知识点的总个数；Zmax表示m个知识点中难度值的最大值；Among them, T a represents the initial recommended teaching duration of the a-th knowledge point; T a, r represents the teaching time of the r-th previous teaching of the a-th knowledge point; K represents the total number of previous lectures of the a-th knowledge point; m represents The total number of knowledge points; Z max represents the maximum value of difficulty in m knowledge points;

步骤A2：根据教师在上一次讲授知识点后，学生对知识点对应的测试试题的测试结果，对知识点的初始推荐讲授时长进行修正，将修正后的初始推荐讲授时长作为知识点的推荐讲授时长，所采用的修正公式如下公式(3)：Step A2: According to the test results of the test questions corresponding to the knowledge point after the teacher taught the knowledge point last time, the initial recommended teaching time of the knowledge point is revised, and the revised initial recommended teaching time is used as the recommended teaching time for the knowledge point. The time length, the correction formula used is as follows formula (3):

Figure BDA0002700415800000033
Figure BDA0002700415800000033

其中,

Figure BDA0002700415800000034
表示第a个知识点对应的修正后的初始推荐讲授时长，即第a个知识点的推荐讲授时长；P表示教师在上一次讲授第a个知识点后，学生对第a个知识点对应的测试试题的平均得分值；F表示教师在上一次讲授第a个知识点后，第a个知识点对应的测试试题的满分值。in,
Figure BDA0002700415800000034
Represents the revised initial recommended teaching time corresponding to the a-th knowledge point, that is, the recommended teaching time for the a-th knowledge point; The average score value of the test questions; F represents the full score of the test questions corresponding to the a-th knowledge point after the teacher taught the a-th knowledge point last time.

对应于本发明实施例提供的前述一种智能教师辅助备课授课系统，本发明实施例还提供了一种智能教师辅助备课授课方法，包括：Corresponding to the aforementioned intelligent teacher-assisted lesson preparation and teaching system provided by the embodiment of the present invention, the embodiment of the present invention also provides an intelligent teacher-assisted lesson preparation and teaching method, including:

便携式教师端向后台服务器上传教师未来要讲授的知识点；The portable teacher terminal uploads the knowledge points that the teacher will teach in the future to the background server;

后台服务器根据学生对知识点的历史学习结果确定知识点的推荐讲授时长，将知识点的推荐讲授时长发送给便携式教师端；The background server determines the recommended teaching duration of the knowledge point according to the students' historical learning results of the knowledge point, and sends the recommended teaching duration of the knowledge point to the portable teacher terminal;

便携式教师端将知识点的推荐讲授时长输出供教师调整，获得知识点的调整后推荐授课时长；The portable teacher terminal outputs the recommended teaching time of knowledge points for teachers to adjust, and the recommended teaching time after the adjustment of knowledge points is obtained;

便携式教师端在接收到教师输入的知识点已经开始讲授的指令时，开始计时，并在所记时长达到第一预设时长时执行提醒操作；第一预设时长为知识点的调整后推荐授课时长减去第二预设时长，第二预设时长小于第一预设时长。When the portable teacher terminal receives the instruction that the knowledge point input by the teacher has started to teach, it starts timing, and performs a reminder operation when the recorded time reaches the first preset time; the first preset time is the recommended teaching after the adjustment of the knowledge point The second preset duration is subtracted from the duration, and the second preset duration is smaller than the first preset duration.

在一个实施例中，根据学生对知识点的历史学习结果确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the historical learning results of the knowledge point by the students, including:

获取知识点对应的历史测试试题做题结果；Obtain the results of the historical test questions corresponding to the knowledge points;

根据知识点对应的历史测试试题做题结果确定知识点的难度值；Determine the difficulty value of the knowledge point according to the results of the historical test questions corresponding to the knowledge point;

根据知识点的难度值确定知识点的推荐讲授时长。The recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point.

在一个实施例中，根据知识点对应的历史测试试题做题结果确定知识点的难度值，包括：In one embodiment, the difficulty value of the knowledge point is determined according to the results of the historical test questions corresponding to the knowledge point, including:

根据知识点对应的历史测试试题的得分情况，计算知识点的难度值，所采用的计算公式如下公式(1)：According to the score of the historical test questions corresponding to the knowledge point, the difficulty value of the knowledge point is calculated. The calculation formula used is as follows: formula (1):

Figure BDA0002700415800000041
Figure BDA0002700415800000041

其中，Za表示第a个知识点的难度值；Na,i表示第i个以往学生对第a个知识点对应的历史测试试题的得分值；Ma表示第a个知识点对应的历史测试试题的满分值；n表示做过第a个知识点对应的历史测试试题的以往学生的总数目。Among them, Z a represents the difficulty value of the knowledge point a; Na ,i represents the score value of the historical test question corresponding to the knowledge point a of the ith past student; Ma represents the corresponding value of the knowledge point a The full score of the history test questions; n represents the total number of past students who have done the history test questions corresponding to the ath knowledge point.

在一个实施例中，根据知识点的难度值确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point, including:

根据知识点的难度值和教师对以往学生讲授知识点的讲授时长，计算知识点的推荐讲授时长，所采用的计算公式如下公式(2)：According to the difficulty value of the knowledge point and the teaching time of the teacher to the previous students to teach the knowledge point, the recommended teaching time of the knowledge point is calculated. The calculation formula used is the following formula (2):

Figure BDA0002700415800000051
Figure BDA0002700415800000051

其中，Ta表示第a个知识点的推荐讲授时长；Ta,r表示以往第r次讲授第a个知识点的讲授时长；K表示第a个知识点的以往讲授总次数；m表示知识点的总个数；Zmax表示m个知识点中难度值的最大值。Among them, T a represents the recommended teaching duration of the a-th knowledge point; T a, r represents the teaching time of the previous r-th teaching of the a-th knowledge point; K represents the total number of previous lectures of the a-th knowledge point; m represents the knowledge The total number of points; Z max represents the maximum difficulty value among m knowledge points.

在一个实施例中，根据知识点的难度值确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point, including:

步骤A1：根据知识点的难度值和教师对以往学生讲授知识点的讲授时长，计算知识点的初始推荐讲授时长，所采用的计算公式如下公式(2)：Step A1: Calculate the initial recommended teaching time of the knowledge point according to the difficulty value of the knowledge point and the teaching time of the teacher to the previous students to teach the knowledge point. The calculation formula used is as follows: Formula (2):

Figure BDA0002700415800000052
Figure BDA0002700415800000052

其中，Ta表示第a个知识点的初始推荐讲授时长；Ta,r表示以往第r次讲授第a个知识点的讲授时长；K表示第a个知识点的以往讲授总次数；m表示知识点的总个数；Zmax表示m个知识点中难度值的最大值；Among them, T a represents the initial recommended teaching duration of the a-th knowledge point; T a, r represents the teaching time of the r-th previous teaching of the a-th knowledge point; K represents the total number of previous lectures of the a-th knowledge point; m represents The total number of knowledge points; Z max represents the maximum value of difficulty in m knowledge points;

步骤A2：根据教师在上一次讲授知识点后，学生对知识点对应的测试试题的测试结果，对知识点的初始推荐讲授时长进行修正，将修正后的初始推荐讲授时长作为知识点的推荐讲授时长，所采用的修正公式如下公式(3)：Step A2: According to the test results of the test questions corresponding to the knowledge point after the teacher taught the knowledge point last time, the initial recommended teaching time of the knowledge point is revised, and the revised initial recommended teaching time is used as the recommended teaching time for the knowledge point. The time length, the correction formula used is as follows formula (3):

Figure BDA0002700415800000053
Figure BDA0002700415800000053

其中,

Figure BDA0002700415800000054
表示第a个知识点对应的修正后的初始推荐讲授时长，即第a个知识点的推荐讲授时长；P表示教师在上一次讲授第a个知识点后，学生对第a个知识点对应的测试试题的平均得分值；F表示教师在上一次讲授第a个知识点后，第a个知识点对应的测试试题的满分值。in,
Figure BDA0002700415800000054
Represents the revised initial recommended teaching time corresponding to the a-th knowledge point, that is, the recommended teaching time for the a-th knowledge point; The average score value of the test questions; F represents the full score of the test questions corresponding to the a-th knowledge point after the teacher taught the a-th knowledge point last time.

与现有技术相比，Compared with the existing technology,

附图说明Description of drawings

为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

图1为本申请公开的一种智能教师辅助备课授课系统的结构示意图；1 is a schematic structural diagram of an intelligent teacher-assisted lesson preparation and teaching system disclosed in this application;

图2为本申请公开的一种智能教师辅助备课授课方法的流程图。FIG. 2 is a flow chart of a method for intelligent teacher-assisted lesson preparation and teaching disclosed in the present application.

具体实施方式Detailed ways

下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

如图1所示，为本申请公开一种智能教师辅助备课授课系统，包括便携式教师端和后台服务器，其中：As shown in FIG. 1 , an intelligent teacher-assisted lesson preparation and teaching system is disclosed for the application, including a portable teacher terminal and a background server, wherein:

便携式教师端，供教师随身携带使用，用于向后台服务器上传教师未来要讲授的知识点；Portable teacher terminal, for teachers to carry and use, to upload the knowledge points to be taught by teachers in the future to the background server;

后台服务器，用于根据学生对知识点的历史学习结果确定知识点的推荐讲授时长，将知识点的推荐讲授时长发送给便携式教师端；The background server is used to determine the recommended teaching duration of the knowledge point according to the historical learning results of the knowledge point by the students, and send the recommended teaching duration of the knowledge point to the portable teacher terminal;

便携式教师端，还用于将知识点的推荐讲授时长输出供教师调整，获得知识点的调整后推荐授课时长；The portable teacher terminal is also used to output the recommended teaching duration of knowledge points for teachers to adjust, and obtain the recommended teaching duration after the adjustment of knowledge points;

便携式教师端，用于在接收到教师输入的知识点已经开始讲授的指令时，开始计时，并在所记时长达到第一预设时长时执行提醒操作；第一预设时长为知识点的调整后推荐授课时长减去第二预设时长，第二预设时长小于第一预设时长。The portable teacher terminal is used to start timing when receiving the instruction that the knowledge point input by the teacher has started to teach, and perform a reminder operation when the recorded time reaches the first preset time; the first preset time is the adjustment of the knowledge point The recommended teaching duration is subtracted from the second preset duration, and the second preset duration is less than the first preset duration.

本发明实施例提供的上述技术方案，通过智能的分析知识点的授课时长，使得知识点的授课时长更加合理，符合学生对知识点的实际接受能力，并且能够协助教师做授课时间管理，提高了教师的授课效果和效率。The above technical solutions provided by the embodiments of the present invention make the teaching time of knowledge points more reasonable by intelligently analyzing the teaching time of knowledge points, which is in line with the actual acceptance ability of students for knowledge points, and can assist teachers in teaching time management, which improves the efficiency of teaching. Teaching effectiveness and efficiency of teachers.

在一个实施例中，根据学生对知识点的历史学习结果确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the historical learning results of the knowledge point by the students, including:

获取知识点对应的历史测试试题做题结果；Obtain the results of the historical test questions corresponding to the knowledge points;

根据知识点对应的历史测试试题做题结果确定知识点的难度值；Determine the difficulty value of the knowledge point according to the results of the historical test questions corresponding to the knowledge point;

根据知识点的难度值确定知识点的推荐讲授时长。The recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point.

在一个实施例中，根据知识点对应的历史测试试题做题结果确定知识点的难度值，包括：In one embodiment, the difficulty value of the knowledge point is determined according to the results of the historical test questions corresponding to the knowledge point, including:

根据知识点对应的历史测试试题的得分情况，计算知识点的难度值，所采用的计算公式如下公式(1)：According to the score of the historical test questions corresponding to the knowledge point, the difficulty value of the knowledge point is calculated. The calculation formula used is as follows: formula (1):

Figure BDA0002700415800000071
Figure BDA0002700415800000071

其中，Za表示第a个知识点的难度值；Na,i表示第i个以往学生对第a个知识点对应的历史测试试题的得分值；Ma表示第a个知识点对应的历史测试试题的满分值；n表示做过第a个知识点对应的历史测试试题的以往学生的总数目。Among them, Z a represents the difficulty value of the knowledge point a; Na ,i represents the score value of the historical test question corresponding to the knowledge point a of the ith past student; Ma represents the corresponding value of the knowledge point a The full score of the history test questions; n represents the total number of past students who have done the history test questions corresponding to the ath knowledge point.

上述技术方案，利用公式(1)得到所述上传的知识点的难度值；目的是通过分析以往学生对所述知识点的得分情况来判定所述知识点对于学生来说的难易程度，从而可以根据知识点的难易程度来规划后续的讲授时长。The above technical scheme uses formula (1) to obtain the difficulty value of the uploaded knowledge point; the purpose is to determine the degree of difficulty of the knowledge point for the students by analyzing the scores of the previous students on the knowledge point, thereby The duration of subsequent lectures can be planned according to the difficulty of the knowledge points.

在一个实施例中，根据知识点的难度值确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point, including:

根据知识点的难度值和教师对以往学生讲授知识点的讲授时长，计算知识点的推荐讲授时长，所采用的计算公式如下公式(2)：According to the difficulty value of the knowledge point and the teaching time of the teacher to the previous students to teach the knowledge point, the recommended teaching time of the knowledge point is calculated. The calculation formula used is the following formula (2):

Figure BDA0002700415800000081
Figure BDA0002700415800000081

其中，Ta表示第a个知识点的推荐讲授时长；Ta,r表示以往第r次讲授第a个知识点的讲授时长；K表示第a个知识点的以往讲授总次数；m表示知识点的总个数；Zmax表示m个知识点中难度值的最大值。Among them, T a represents the recommended teaching duration of the a-th knowledge point; T a, r represents the teaching time of the previous r-th teaching of the a-th knowledge point; K represents the total number of previous lectures of the a-th knowledge point; m represents the knowledge The total number of points; Z max represents the maximum difficulty value among m knowledge points.

上述技术方案，通过对以往学生所述知识点的讲授时长以及所述知识点的难度值来整合分析得到所述知识点的推荐讲授时长，教师按照这个推荐讲授时长讲授知识点，可以最大限度的满足每一个学生对所述知识点的理解，讲授时长合理，对于简单的知识点来说不至于讲解的时间过长，难的知识点不至于讲授时长过短。In the above technical scheme, the recommended teaching duration of the knowledge point is obtained by integrating and analyzing the teaching duration of the knowledge point and the difficulty value of the knowledge point of the previous students. The teacher teaches the knowledge point according to the recommended teaching duration, and can maximize the teaching duration. To satisfy each student's understanding of the knowledge points, the teaching time is reasonable. For simple knowledge points, the time to explain is not too long, and for difficult knowledge points, the teaching time is not too short.

在一个实施例中，根据知识点的难度值确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point, including:

步骤A1：根据知识点的难度值和教师对以往学生讲授知识点的讲授时长，计算知识点的初始推荐讲授时长，所采用的计算公式如下公式(2)：Step A1: Calculate the initial recommended teaching time of the knowledge point according to the difficulty value of the knowledge point and the teaching time of the teacher to the previous students to teach the knowledge point. The calculation formula used is as follows: Formula (2):

Figure BDA0002700415800000082
Figure BDA0002700415800000082

其中，Ta表示第a个知识点的初始推荐讲授时长；Ta,r表示以往第r次讲授第a个知识点的讲授时长；K表示第a个知识点的以往讲授总次数；m表示知识点的总个数；Zmax表示m个知识点中难度值的最大值；Among them, T a represents the initial recommended teaching duration of the a-th knowledge point; T a, r represents the teaching time of the r-th previous teaching of the a-th knowledge point; K represents the total number of previous lectures of the a-th knowledge point; m represents The total number of knowledge points; Z max represents the maximum value of difficulty in m knowledge points;

步骤A2：根据教师在上一次讲授知识点后，学生对知识点对应的测试试题的测试结果，对知识点的初始推荐讲授时长进行修正，将修正后的初始推荐讲授时长作为知识点的推荐讲授时长，所采用的修正公式如下公式(3)：Step A2: According to the test results of the test questions corresponding to the knowledge point after the teacher taught the knowledge point last time, the initial recommended teaching time of the knowledge point is revised, and the revised initial recommended teaching time is used as the recommended teaching time for the knowledge point. The time length, the correction formula used is as follows formula (3):

Figure BDA0002700415800000083
Figure BDA0002700415800000083

其中,

Figure BDA0002700415800000084
表示第a个知识点对应的修正后的初始推荐讲授时长，即第a个知识点的推荐讲授时长；P表示教师在上一次讲授第a个知识点后，学生对第a个知识点对应的测试试题的平均得分值；F表示教师在上一次讲授第a个知识点后，第a个知识点对应的测试试题的满分值。in,
Figure BDA0002700415800000084
Represents the revised initial recommended teaching time corresponding to the a-th knowledge point, that is, the recommended teaching time for the a-th knowledge point; The average score value of the test questions; F represents the full score of the test questions corresponding to the a-th knowledge point after the teacher taught the a-th knowledge point last time.

上述技术方案，通过对以往学生所述知识点的讲授时长以及所述知识点的难度值来整合分析得到所述知识点的初始推荐讲授时长，然后，根据教师最近一次也就是上一次讲授知识点后的学生学习成果，对知识点的初始推荐讲授时长进行修正，也就是根据教师最近讲授知识点的讲授状态进行修正，使得最终确定出的知识点的推荐讲授时长更加符合教师最近的教学水平，更加合理。In the above technical solution, the initial recommended teaching duration of the knowledge point is obtained by integrating and analyzing the teaching duration of the knowledge point and the difficulty value of the knowledge point for students in the past, and then, according to the last time the teacher taught the knowledge point After the students learn the results, the initial recommended teaching duration of the knowledge points is revised, that is, according to the teaching status of the knowledge points recently taught by the teacher, so that the recommended teaching duration of the finally determined knowledge points is more in line with the teacher's recent teaching level. more reasonable.

对应于本发明实施例提供的前述一种智能教师辅助备课授课系统，本发明实施例还提供了一种智能教师辅助备课授课方法，包括：Corresponding to the aforementioned intelligent teacher-assisted lesson preparation and teaching system provided by the embodiment of the present invention, the embodiment of the present invention also provides an intelligent teacher-assisted lesson preparation and teaching method, including:

便携式教师端向后台服务器上传教师未来要讲授的知识点；The portable teacher terminal uploads the knowledge points that the teacher will teach in the future to the background server;

后台服务器根据学生对知识点的历史学习结果确定知识点的推荐讲授时长，将知识点的推荐讲授时长发送给便携式教师端；The background server determines the recommended teaching duration of the knowledge point according to the students' historical learning results of the knowledge point, and sends the recommended teaching duration of the knowledge point to the portable teacher terminal;

便携式教师端将知识点的推荐讲授时长输出供教师调整，获得知识点的调整后推荐授课时长；The portable teacher terminal outputs the recommended teaching time of knowledge points for teachers to adjust, and the recommended teaching time after the adjustment of knowledge points is obtained;

便携式教师端在接收到教师输入的知识点已经开始讲授的指令时，开始计时，并在所记时长达到第一预设时长时执行提醒操作；第一预设时长为知识点的调整后推荐授课时长减去第二预设时长，第二预设时长小于第一预设时长。When the portable teacher terminal receives the instruction that the knowledge point input by the teacher has started to teach, it starts timing, and performs a reminder operation when the recorded time reaches the first preset time; the first preset time is the recommended teaching after the adjustment of the knowledge point The second preset duration is subtracted from the duration, and the second preset duration is smaller than the first preset duration.

在一个实施例中，根据学生对知识点的历史学习结果确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the historical learning results of the knowledge point by the students, including:

获取知识点对应的历史测试试题做题结果；Obtain the results of the historical test questions corresponding to the knowledge points;

根据知识点对应的历史测试试题做题结果确定知识点的难度值；Determine the difficulty value of the knowledge point according to the results of the historical test questions corresponding to the knowledge point;

根据知识点的难度值确定知识点的推荐讲授时长。The recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point.

在一个实施例中，根据知识点对应的历史测试试题做题结果确定知识点的难度值，包括：In one embodiment, the difficulty value of the knowledge point is determined according to the results of the historical test questions corresponding to the knowledge point, including:

根据知识点对应的历史测试试题的得分情况，计算知识点的难度值，所采用的计算公式如下公式(1)：According to the score of the historical test questions corresponding to the knowledge point, the difficulty value of the knowledge point is calculated. The calculation formula used is as follows: formula (1):

Figure BDA0002700415800000101
Figure BDA0002700415800000101

其中，Za表示第a个知识点的难度值；Na,i表示第i个以往学生对第a个知识点对应的历史测试试题的得分值；Ma表示第a个知识点对应的历史测试试题的满分值；n表示做过第a个知识点对应的历史测试试题的以往学生的总数目。Among them, Z a represents the difficulty value of the knowledge point a; Na ,i represents the score value of the historical test question corresponding to the knowledge point a of the ith past student; Ma represents the corresponding value of the knowledge point a The full score of the history test questions; n represents the total number of past students who have done the history test questions corresponding to the ath knowledge point.

在一个实施例中，根据知识点的难度值确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point, including:

根据知识点的难度值和教师对以往学生讲授知识点的讲授时长，计算知识点的推荐讲授时长，所采用的计算公式如下公式(2)：According to the difficulty value of the knowledge point and the teaching time of the teacher to the previous students to teach the knowledge point, the recommended teaching time of the knowledge point is calculated. The calculation formula used is the following formula (2):

Figure BDA0002700415800000102
Figure BDA0002700415800000102

其中，Ta表示第a个知识点的推荐讲授时长；Ta,r表示以往第r次讲授第a个知识点的讲授时长；K表示第a个知识点的以往讲授总次数；m表示知识点的总个数；Zmax表示m个知识点中难度值的最大值。Among them, T a represents the recommended teaching duration of the a-th knowledge point; T a, r represents the teaching time of the previous r-th teaching of the a-th knowledge point; K represents the total number of previous lectures of the a-th knowledge point; m represents the knowledge The total number of points; Z max represents the maximum difficulty value among m knowledge points.

在一个实施例中，根据知识点的难度值确定知识点的推荐讲授时长，包括：In one embodiment, the recommended teaching duration of the knowledge point is determined according to the difficulty value of the knowledge point, including:

步骤A1：根据知识点的难度值和教师对以往学生讲授知识点的讲授时长，计算知识点的初始推荐讲授时长，所采用的计算公式如下公式(2)：Step A1: Calculate the initial recommended teaching time of the knowledge point according to the difficulty value of the knowledge point and the teaching time of the teacher to the previous students to teach the knowledge point. The calculation formula used is as follows: Formula (2):

Figure BDA0002700415800000103
Figure BDA0002700415800000103

其中，Ta表示第a个知识点的初始推荐讲授时长；Ta,r表示以往第r次讲授第a个知识点的讲授时长；K表示第a个知识点的以往讲授总次数；m表示知识点的总个数；Zmax表示m个知识点中难度值的最大值；Among them, T a represents the initial recommended teaching duration of the a-th knowledge point; T a, r represents the teaching time of the r-th previous teaching of the a-th knowledge point; K represents the total number of previous lectures of the a-th knowledge point; m represents The total number of knowledge points; Z max represents the maximum value of difficulty in m knowledge points;

步骤A2：根据教师在上一次讲授知识点后，学生对知识点对应的测试试题的测试结果，对知识点的初始推荐讲授时长进行修正，将修正后的初始推荐讲授时长作为知识点的推荐讲授时长，所采用的修正公式如下公式(3)：Step A2: According to the test results of the test questions corresponding to the knowledge point after the teacher taught the knowledge point last time, the initial recommended teaching time of the knowledge point is revised, and the revised initial recommended teaching time is used as the recommended teaching time for the knowledge point. The time length, the correction formula used is as follows formula (3):

Figure BDA0002700415800000111
Figure BDA0002700415800000111

其中,

Figure BDA0002700415800000112
表示第a个知识点对应的修正后的初始推荐讲授时长，即第a个知识点的推荐讲授时长；P表示教师在上一次讲授第a个知识点后，学生对第a个知识点对应的测试试题的平均得分值；F表示教师在上一次讲授第a个知识点后，第a个知识点对应的测试试题的满分值。in,
Figure BDA0002700415800000112
Represents the revised initial recommended teaching time corresponding to the a-th knowledge point, that is, the recommended teaching time for the a-th knowledge point; The average score value of the test questions; F represents the full score of the test questions corresponding to the a-th knowledge point after the teacher taught the a-th knowledge point last time.

对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下，在其它实施例中实现。因此，本申请将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, this application is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (2)

1. The utility model provides an intelligence teacher assists system of giving lessons of preparing lessons which comprises portable teacher end and backend server, wherein:
the portable teacher end is used for being carried by a teacher and used for uploading knowledge points to be taught by the teacher in the future to the background server;
the background server is used for determining the recommended teaching time length of the knowledge point according to the historical learning result of the students on the knowledge point and sending the recommended teaching time length of the knowledge point to the portable teacher end;
the portable teacher end is further used for outputting the recommended teaching time length of the knowledge point for the teacher to adjust, and obtaining the adjusted recommended teaching time length of the knowledge point;
the portable teacher end is used for starting timing when receiving an instruction that the teacher inputs that the knowledge point starts to teach, and executing a reminding operation when the recorded time length reaches a first preset time length; the first preset time length is the time length of the recommended teaching after the adjustment of the knowledge points minus a second preset time length, and the second preset time length is smaller than the first preset time length;
wherein, the determining the recommended teaching duration of the knowledge point according to the historical learning result of the student on the knowledge point comprises the following steps:
obtaining a historical test question making result corresponding to the knowledge point;
determining the difficulty value of the knowledge point according to the historical test question making result corresponding to the knowledge point;
determining the recommended teaching duration of the knowledge points according to the difficulty values of the knowledge points;
wherein, the determining the difficulty value of the knowledge point according to the result of the historical test question making corresponding to the knowledge point comprises:
calculating the difficulty value of the knowledge point according to the score condition of the historical test question corresponding to the knowledge point, wherein the adopted calculation formula is as the following formula (1):
Figure FDA0003100333180000011
wherein Z isaRepresenting the difficulty value of the a-th knowledge point; n is a radical ofa,iThe score value of the historical test question corresponding to the ith past student to the a-th knowledge point is represented; maRepresenting the full score value of the historical test question corresponding to the a-th knowledge point; n represents the total number of the past students who have made the historical test questions corresponding to the a-th knowledge point;
wherein, the determining the recommended teaching duration of the knowledge point according to the difficulty value of the knowledge point comprises:
calculating the recommended teaching duration of the knowledge points according to the difficulty value of the knowledge points and the teaching duration of the past students for teaching the knowledge points, wherein the adopted calculation formula is as follows (2):
Figure FDA0003100333180000021
wherein, TaRepresenting the recommended teaching duration of the a-th knowledge point; t isa,rThe teaching time length of the previous r-th teaching of the a-th knowledge point is represented; k represents the total number of past teaching times of the a-th knowledge point; m represents the total number of the knowledge points; zmaxRepresents the maximum value of the difficulty values in the m knowledge points.
2. An intelligent teacher assisted lesson preparation and teaching method is characterized by comprising the following steps:
the portable teacher end uploads knowledge points to be taught by the teacher in the future to a background server;
the background server determines the recommended teaching time length of the knowledge point according to the historical learning result of the knowledge point by the student, and sends the recommended teaching time length of the knowledge point to the portable teacher end;
the portable teacher end outputs the recommended teaching time length of the knowledge point for the teacher to adjust, and the adjusted recommended teaching time length of the knowledge point is obtained;
the portable teacher end starts timing when receiving an instruction that the teacher inputs that the knowledge point starts to teach, and executes reminding operation when the recorded time length reaches a first preset time length; the first preset time length is the time length of the recommended teaching after the adjustment of the knowledge points minus a second preset time length, and the second preset time length is smaller than the first preset time length;
wherein, the determining the recommended teaching duration of the knowledge point according to the historical learning result of the student on the knowledge point comprises the following steps:
obtaining a historical test question making result corresponding to the knowledge point;
determining the difficulty value of the knowledge point according to the historical test question making result corresponding to the knowledge point;
determining the recommended teaching duration of the knowledge points according to the difficulty values of the knowledge points;
wherein, the determining the difficulty value of the knowledge point according to the result of the historical test question making corresponding to the knowledge point comprises:
calculating the difficulty value of the knowledge point according to the score condition of the historical test question corresponding to the knowledge point, wherein the adopted calculation formula is as the following formula (1):
Figure FDA0003100333180000031
wherein Z isaRepresenting the difficulty value of the a-th knowledge point; n is a radical ofa,iThe score value of the historical test question corresponding to the ith past student to the a-th knowledge point is represented; maRepresenting the full score value of the historical test question corresponding to the a-th knowledge point; n represents the total number of the past students who have made the historical test questions corresponding to the a-th knowledge point;
wherein, the determining the recommended teaching duration of the knowledge point according to the difficulty value of the knowledge point comprises:
calculating the recommended teaching duration of the knowledge points according to the difficulty value of the knowledge points and the teaching duration of the past students for teaching the knowledge points, wherein the adopted calculation formula is as follows (2):
Figure FDA0003100333180000032
wherein, TaRepresenting the recommended teaching duration of the a-th knowledge point; t isa,rThe teaching time length of the previous r-th teaching of the a-th knowledge point is represented; k represents the total number of past teaching times of the a-th knowledge point; m represents the total number of the knowledge points; zmaxRepresents the maximum value of the difficulty values in the m knowledge points.
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