基于知识图谱的《信号与系统》课程创新教学改革

Innovative Teaching Reform of “Signal and System” Course Based on Knowledge Graph

摘要: 《信号与系统》课程是电子信息类专业的专业基础课程，其知识点多且要求数学基础好、逻辑思维强，一直以来很多学生对知识点间关系理解不够，难以获得好的学习效果。从建立课程知识图谱的角度出发，梳理课程知识点间的关联关系，并开发一个基于知识图谱的线上学习系统，每个知识点设置PPT、文本、视频等学习资料，并将课程学习按知识图谱设置为游戏闯关模式，激发并记录每位学生的学习情况。植入了基于知识图谱的沉浸式学习系统后，《信号与系统》课程教与学的距离缩小，学生学习积极性、课程参与度、考核成绩都有明显改善，参加学科竞赛、科研项目的比例也明显提升。

Abstract: The course “Signal and System” is a professional foundation course for electronic information ma-jors. It has many knowledge points and requires a good mathematical foundation and strong logical thinking. Many students are not capable to fully understand the relationship between knowledge points, which makes it difficult for them to achieve good learning outcomes. From the perspective of establishing a course knowledge graph, the correlation between course knowledge points is sorted out, and an online learning system is developed based on the knowledge graph. Each knowledge point is equipped with learning materials such as PPTs, texts, videos, etc. The course learning is set as a game challenge mode according to the knowledge graph, stimulating and recording the learning situation of each student. After the implantation of an immersive learning system based on knowledge graph, the distance between teaching and learning in the course “Signals and Systems” has narrowed, and students’ learning enthusiasm, course participation, and assessment scores have significantly improved. The proportion of participants in subject competitions and scientific research projects has also significantly increased.