技术领域technical field
本发明涉及智慧课堂技术领域，具体涉及一种基于智慧课堂截图题目的智能荐题方法。The invention relates to the technical field of smart classrooms, in particular to an intelligent question recommendation method based on screenshots of smart classroom questions.
背景技术Background technique
智慧课堂是以互联网、大数据、云计算等新一代信息技术打造的智能、高效的课堂。智慧课堂的核心在于课堂，目标就是要运用智慧课堂，实现教学决策数据化、评价反馈即时化、交流互动立体化、资源推送智能化。The smart classroom is an intelligent and efficient classroom created by a new generation of information technology such as the Internet, big data, and cloud computing. The core of the smart classroom lies in the classroom, and the goal is to use the smart classroom to realize data-based teaching decision-making, instant evaluation feedback, three-dimensional communication and interaction, and intelligent resource push.
智慧课堂的一大场景就是随堂练习，老师在智慧课堂教学平台发送练习题给全班学生进行练习，学生答题后提交，系统对全班的答题情况进行统计分析。A major scene of the smart classroom is in-class practice. The teacher sends practice questions to the whole class for practice on the smart classroom teaching platform. After the students answer the questions, they submit them. The system performs statistical analysis on the answers of the whole class.
随堂练习的一种常见的方式就是截图发送，即老师随时从屏幕展示的界面中通过截图的方式作为一种练习题下发给学生。但是截图发送题作为一种临时题练习后，仅仅只能体现出当前的练习结果，无法关联海量题库，也没有办法根据统计结果进行调整练测难度和内容，无法真正做到基于动态的数据分析来智能调节练测水平。即使是老师已备好的题目也无法真正做到适应性，而临时去选择题目也会浪费课堂宝贵时间。A common method of in-class practice is to send screenshots, that is, the teacher sends screenshots from the interface displayed on the screen at any time as a practice question to students. However, after the screenshot sending question is used as a temporary question practice, it can only reflect the current practice results, and cannot be associated with a massive question bank, and there is no way to adjust the difficulty and content of the practice test based on the statistical results, and it is impossible to truly implement dynamic data analysis. To intelligently adjust the practice test level. Even the questions prepared by the teacher cannot be truly adaptable, and choosing topics temporarily will waste valuable time in the classroom.
发明内容Contents of the invention
针对现有技术的不足，本发明旨在提供一种基于智慧课堂截图题目的智能荐题方法。Aiming at the deficiencies of the prior art, the present invention aims to provide an intelligent question recommendation method based on screenshots of smart classroom questions.
为了实现上述目的，本发明采用如下技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:
一种基于智慧课堂截图题目的智能荐题方法，具体过程为：An intelligent question recommendation method based on screenshots of smart classroom questions, the specific process is:
S1、老师在教师端截取屏幕的题目，教师端将截图发送到学生端的同时把截图同步上传到智慧课堂服务器；智慧课堂服务器对截图进行OCR光学字符识别，将截图中的题目内容转换成文本，并根据预设的题型模型判断题目的类型；所述题目的类型包括主观题和客观题；S1. The teacher captures the questions on the screen at the teacher’s end, and the teacher sends the screenshot to the student’s end and simultaneously uploads the screenshot to the smart classroom server; the smart classroom server performs OCR optical character recognition on the screenshot, and converts the content of the question in the screenshot into text. And judge the type of the question according to the preset question type model; the type of the question includes subjective questions and objective questions;
S2、智慧课堂服务器在试题库中进行检索匹配，筛选出相似度在预设范围区间的题目并放入备选荐题池中；试题库中，各个题目的属性包含学科、年级、类型、题干、答案选项、知识点、考点、分值、题目难度、题目层级；S2. The smart classroom server searches and matches in the test question bank, screens out questions whose similarity is within the preset range, and puts them into the candidate recommendation pool; in the test question bank, the attributes of each question include subject, grade, type, question Dry, answer options, knowledge points, test points, points, question difficulty, question level;
S3、全班学生在各自的学生端对老师截取的题目答题完毕并提交答案，经过手动或自动批阅后，各个学生的答题情况被上传至智慧课堂服务器；所述智慧课堂服务器对各个学生的答题情况进行统计并据此对学生进行分层：如果是客观题，将答错的学生分为学困生，答错的学生分为学优生；如果是主观题，统计全班答题的平均得分，并按照平均得分将0至题目总分这个总区间分为低区间、中区间和高区间，得分落入低区间的划分为学困生，得分落入中区间的划分为学中生，得分落入高区间的划分为学优生；S3. All the students in the class answer the questions intercepted by the teacher on their respective student terminals and submit the answers. After manual or automatic review, the answers of each student are uploaded to the smart classroom server; Make statistics on the situation and classify the students accordingly: if it is an objective question, classify the students who answered wrongly as poor students, and the students who answered wrongly as excellent students; if it is a subjective question, count the average score of the whole class's answers, And according to the average score, the total range from 0 to the total score of the topic is divided into low range, middle range and high range. The division of high school students into high school students;
S4、老师通过教师端向智慧课堂服务器发送荐题请求，智慧课堂服务器根据预设的规则分别为学困生、学中生、学优生从备选荐题池中选择设定数量的题目并推送至对应学生的学生端。S4. The teacher sends a question recommendation request to the smart classroom server through the teacher terminal, and the smart classroom server selects a set number of questions from the candidate recommendation pool for students with learning difficulties, middle school students, and excellent students according to preset rules and pushes them To the student terminal of the corresponding student.
进一步地，上述方法中，所述题目难度分为一般、中等、困难，所述题目层级分为基础、提高和拓展；所述预设的规则为：对于学困生，从备选荐题池中随机选择设定数量的题目难度为一般、题目层级为基础的题目；对于学中生，从备选荐题池中随机选择设定数量的题目难度为困难、题目层级为提高的题目，对于学优生，从备选荐题池中随机选择设定数量的题目层级为拓展的题目。还可以根据实际的需求对所述预设的规则进行修改，达到不同的测评目的。Further, in the above method, the difficulty of the questions is divided into general, medium and difficult, and the level of the questions is divided into basic, improvement and expansion; the preset rule is: for students with learning difficulties, from the pool of recommended questions Randomly select a set number of questions whose difficulty is normal and whose level is based on the question level; For excellent students, randomly select a set number of questions from the pool of recommended questions as extended questions. The preset rules can also be modified according to actual needs to achieve different evaluation purposes.
本发明的有益效果在于：The beneficial effects of the present invention are:
1、本发明还在教师截图测试的同时根据截图的题目进行自动荐题，教师无需自行预备或即时选择更多的测试题，大大提高课堂效率。1. The present invention also automatically recommends questions according to the questions in the screenshots while the teacher is taking the screenshot test. The teacher does not need to prepare or select more test questions in real time, which greatly improves the classroom efficiency.
2、本发明根据不同的学生水平进行荐题，更有针对性，使得每个学生都可以进行个性化练测。2. The present invention recommends questions according to different student levels, which is more targeted, so that each student can carry out personalized practice and test.
具体实施方式Detailed ways
以下将对本发明作进一步的描述，需要说明的是，本实施例以本技术方案为前提，给出了详细的实施方式和具体的操作过程，但本发明的保护范围并不限于本实施例。The present invention will be further described below. It should be noted that this embodiment is based on the technical solution and provides detailed implementation and specific operation process, but the protection scope of the present invention is not limited to this embodiment.
本实施例提供一种基于智慧课堂截图题目的智能荐题方法，具体过程为：This embodiment provides an intelligent question recommendation method based on screenshots of smart classroom questions. The specific process is as follows:
S1、老师在教师端截取屏幕的题目，教师端将截图发送到学生端的同时把截图同步上传到智慧课堂服务器；智慧课堂服务器对截图进行OCR光学字符识别，将截图中的题目内容转换成文本，并根据预设的题型模型判断题目的类型；所述题目的类型包括主观题和客观题；S1. The teacher captures the questions on the screen at the teacher’s end, and the teacher sends the screenshot to the student’s end and simultaneously uploads the screenshot to the smart classroom server; the smart classroom server performs OCR optical character recognition on the screenshot, and converts the content of the question in the screenshot into text. And judge the type of the question according to the preset question type model; the type of the question includes subjective questions and objective questions;
S2、智慧课堂服务器在试题库中进行检索匹配，筛选出相似度在预设范围区间的题目并放入备选荐题池中；试题库中，各个题目的属性包含学科、年级、类型(主观题、客观题)、题干、答案选项、知识点、考点、分值、题目难度(一般、中等、困难)、题目层级(基础、提高、拓展)。试题库题目数量级别保障在百万级别以上。S2. The smart classroom server searches and matches in the test question bank, screens out questions whose similarity is within the preset range, and puts them into the pool of candidate recommended questions; in the test question bank, the attributes of each question include subject, grade, type (subjective) Questions, objective questions), question stems, answer options, knowledge points, test points, points, question difficulty (general, medium, difficult), question level (basic, improvement, expansion). The number of questions in the test question bank is guaranteed to be above one million.
本实施例中，计算得到要对比的两个题目在文本内容、知识点、考点、类型、题目难度等方面的相似度后，采用不同的权重进行加权算法得出最终的相似度。In this embodiment, after calculating the similarity of the two topics to be compared in terms of text content, knowledge points, test points, type, and difficulty of the topic, different weights are used to perform a weighting algorithm to obtain the final similarity.
S3、全班学生在各自的学生端对老师截取的题目答题完毕并提交答案，经过手动或自动批阅后，各个学生的答题情况被上传至智慧课堂服务器；所述智慧课堂服务器对各个学生的答题情况进行统计并据此对学生进行分层：如果是客观题，将答错的学生分为学困生，答错的学生分为学优生；如果是主观题，统计全班答题的平均得分，并按照平均得分将0至题目总分这个总区间分为低区间、中区间和高区间，得分落入低区间的划分为学困生，得分落入中区间的划分为学中生，得分落入高区间的划分为学优生；区间的划分可以自定义。S3. All the students in the class answer the questions intercepted by the teacher on their respective student terminals and submit the answers. After manual or automatic review, the answers of each student are uploaded to the smart classroom server; Make statistics on the situation and classify the students accordingly: if it is an objective question, classify the students who answered wrongly as poor students, and the students who answered wrongly as excellent students; if it is a subjective question, count the average score of the whole class's answers, And according to the average score, the total range from 0 to the total score of the topic is divided into low range, middle range and high range. The division of entering high school intervals is for high-achieving students; the division of intervals can be customized.
S4、老师对截取的题目进行讲解完毕后，通常需要进一步进行更多题目的练测来检验学生对此题目知识点的消化和吃透程度。此时，老师通过教师端向智慧课堂服务器发送荐题请求，智慧课堂服务器根据预设的规则分别为学困生、学中生、学优生从备选荐题池中选择设定数量的题目并推送至对应学生的学生端。S4. After the teacher has finished explaining the intercepted questions, it is usually necessary to conduct more practice tests to test the students' digestion and understanding of the knowledge points of this topic. At this time, the teacher sends a recommendation request to the smart classroom server through the teacher terminal, and the smart classroom server selects a set number of questions from the candidate recommendation pool for students with learning difficulties, middle school students, and excellent students according to preset rules Push to the student terminal of the corresponding student.
具体地，在本实施例中，所述预设的规则为：对于学困生，从备选荐题池中随机选择设定数量的题目难度为一般、题目层级为基础的题目；对于学中生，从备选荐题池中随机选择设定数量的题目难度为困难、题目层级为提高的题目，对于学优生，从备选荐题池中随机选择设定数量的题目层级为拓展的题目。还可以根据实际的需求对所述预设的规则进行修改，达到不同的测评目的。Specifically, in this embodiment, the preset rule is: for students with learning difficulties, randomly select a set number of questions from the pool of recommended questions with a set number of questions based on general difficulty and question levels; For high-achieving students, randomly select a set number of questions from the pool of recommended questions with a set number of questions whose difficulty is difficult and whose level is enhanced. . The preset rules can also be modified according to actual needs to achieve different evaluation purposes.
对于本领域的技术人员来说，可以根据以上的技术方案和构思，给出各种相应的改变和变形，而所有的这些改变和变形，都应该包括在本发明权利要求的保护范围之内。For those skilled in the art, various corresponding changes and modifications can be made according to the above technical solutions and concepts, and all these changes and modifications should be included in the protection scope of the claims of the present invention.
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