知识图谱如何赋能课堂教学评价?——以小学阶段优质数学课“平行与垂直”为例

How does Knowledge Map Enable Classroom Teaching Evaluation——Taking the High-quality Mathematics Course“Parallel and Vertical”in Elementary School Stage as an Example

课堂教学是学校教育和人才培养的主阵地,而课堂教学评价是影响教育教学质量的关键。为了提高课堂教学评价的有效性和科学性,文章基于知识图谱,通过文本分词、关键词抽取、知识点挖掘、语义表征、相似度计算五个环节,提炼课堂教学中的关键内容并以可视化形式呈现知识点之间的复杂关系,进而通过与教学设计中的关键内容相对照,客观监测真实课堂教学在多大程度上实现了预定的教学目标。为验证知识图谱在课堂教学评价中的应用效果,本研究以小学阶段优质数学课“平行与垂直”为例,展现知识图谱赋能课堂教学评价的过程,结果显示知识图谱能被有效应用于课堂教学评价。文章的研究有助于教师客观地了解教学水平、完善教学策略,创建优质课堂,并为教师专业发展和教育质量监测提供数据支撑。

Classroom teaching is the main front of school education and talent training,and classroom teaching evaluation is the key to affecting the quality of education and teaching.In order to improve the effectiveness and scientificity of classroom teaching evaluation,based on the knowledge map,this paper extracted the key content in classroom teaching and presented the complex relationship among knowledge points in a visual form through five links of text word segmentation,keyword extraction,knowledge point mining,semantic representation,similarity calculation.Accordingly,to what extent the real classroom teaching achieved the established teaching objectives was objectively monitored by comparing the key contents with the these in teaching design.In order to verify the application effect of knowledge map in classroom teaching evaluation,this paper took the high-quality mathematics course“Parallel and Vertical”in elementary school stage as an example to present the process of classroom teaching evaluation enabled by knowledge map.The results showed that the knowledge map could be effectively applied to classroom teaching evaluation.The research in this paper could help teachers objectively understand the teaching level,improve teaching strategy and create a high-quality classroom,provide data support for teachers’professional development and education quality monitoring.