基于知识点的初中化学诊断性练习推荐系统研究

发布时间：2018-01-12 19:08

本文关键词：基于知识点的初中化学诊断性练习推荐系统研究　出处：《中央民族大学》2017年硕士论文　论文类型：学位论文

【摘要】：技术服务于教育是教育技术的宗旨。初中阶段是学生学习的重要阶段,也是学生知识体系建立和完善的重要时期。然而,互联网给学习者带来共享知识和信息的同时,也给即将面临中考这一重要转折点的学习者带来了很多干扰。因此,初中学生、家长、老师和学校面临的问题是如何利用互联网更高效的学习。基于此,本人产生了利用互联网等信息技术和现代教育理念来服务于学生个性化高效学习的研究想法。本研究以教育技术的重要理论如"提取式练习"、有意义学习、建构主义学习理论、布鲁姆的目标分类模型、学习者特征分析、多元智能理论、知识地图理论等为理论基础,结合艾宾浩斯的记忆学说,利用计算机开发技术、在线练习组卷算法、基于标签的推荐技术等技术手段,设计、建构和实现了基于知识点的初中化学诊断性练习推荐系统原型并进行了相关研究工作。围绕基于知识点的初中化学诊断性练习推荐系统研究,本文主要完成以下工作:1.结合提取式练习、有意义学习的相关研究成果和布鲁姆的六层认知学说,针对化学领域知识,建构初中化学学科知识点模型和知识地图。使用者可以在此基础上,形成层级式知识体系,构建初中化学知识题库。2.在学习者特征分析的理论基础上,结合多元智能理论和知识的广度深度学习算法,建立了学习者特征模型。以知识点作为衔接,利用组卷算法和基于标签的推荐技术,智能的推荐与错题知识点和难度层级相对应的题目,帮助学习者毫无痕迹的巩固所学知识,实现练习式诊断和强化学习的目的。3.设计并实现了基于知识点的初中化学诊断性练习推荐系统的系统原型,包括系统数据库框架的设计,管理员、教师和学生三个子系统的主要功能模块设计以及系统平台的搭建。另外,考虑到当前初中化学不同知识点的题目更新速度很快,为了保证平台题目的新颖性和实时性,管理员和教师可以随时更新数据库中题库试题和知识点,从而使学生掌握最新学科知识。4.系统会记录学生的练习情况,教师和学生可以查看错误题目,进行实时诊断。利用学习者的长期测评记录,教师可以更好的把握学习者对不同知识点的掌握情况,从而准确的梳理学科重难点知识,及时调整教学方法。学习者本身可以根据系统评测,在加强和巩固所学知识点的同时,也能对自我学习效能有更加深刻的认识。
[Abstract]:Technical service to education is the aim of educational technology. Junior middle school is an important stage for students to learn, and it is also an important period for students to establish and improve their knowledge system. The Internet brings learners knowledge and information sharing, but also brings a lot of interference to the learners who will face the important turning point of the middle school examination. Therefore, junior high school students, parents. Teachers and schools face the problem of how to use the Internet to learn more efficiently. Based on this. I have developed the research idea of using information technology such as Internet and modern educational concept to serve students' individualized and efficient learning. This research takes the important theory of educational technology such as "extraction exercise", meaningful learning. Based on constructivism learning theory, Bloom's target classification model, learner characteristic analysis, multiple intelligences theory, knowledge map theory and so on, combined with Ibinhaus' memory theory, computer development technology is used. Online exercise test paper algorithm, tag-based recommendation technology and other technical means, design. This paper constructs and implements the prototype of the Knowledge-based Chemistry Diagnostic exercise recommendation system in junior high school and carries out the related research work around the Knowledge-based Chemistry Diagnostic exercise recommendation system in junior high school. This paper mainly completes the following work: 1. Combined with the extraction exercise, meaningful learning related research results and Bloom's six-level cognitive theory, aimed at the chemical field of knowledge. On the basis of this, users can form a hierarchical knowledge system and construct a junior high school chemistry knowledge question bank. 2. On the basis of the theory of learner characteristics analysis, users can construct the knowledge point model and knowledge map of junior high school chemistry. Combining the theory of multiple intelligences and the learning algorithm of breadth and depth of knowledge, the learner characteristic model is established. The knowledge points are used as the link, and the algorithm of generating test papers and the technology of recommendation based on label are used. The recommendation of intelligence, which corresponds to the points of knowledge and the level of difficulty, helps learners consolidate their knowledge without any trace. Design and implement the system prototype of junior high school chemistry diagnostic practice recommendation system based on knowledge point, including the design of system database framework, administrator. Teachers and students of the three subsystems of the main functional modules design and system platform building. In addition, considering the current junior high school chemistry different knowledge points of the topic update speed quickly. In order to ensure the novelty and real-time of the platform topic, administrators and teachers can update the test questions and knowledge points in the database at any time. So that students can master the latest knowledge of the subject. 4. the system will record the practice of students, teachers and students can check the wrong topics, real-time diagnosis. Teachers can better grasp the learners of different knowledge points to grasp the situation, thus accurately combing the difficult knowledge of the subject, timely adjustment of teaching methods. Learners themselves can be assessed according to the system. While strengthening and consolidating the knowledge learned, we can also have a deeper understanding of self-learning effectiveness.
【学位授予单位】：中央民族大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G633.8;G434

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