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小学数学课堂教学拓展,是指数学学习内容由课内向纵深处或向课外的延伸和合理渗透。可以是主体内容的辐射、铺垫和延续,也可以是某一知识点的综合、深化和提高。有效的课堂教学拓展,能使趋于平静的课堂再起波澜,一方面使本堂课的教学内容得到升华和总结,另一方面为学生的后续学习埋下伏笔,做好铺垫,从而优化教学效果。许多数学教师深谙此理,非常重视课堂教学的拓展,使教学内容由易到难、由浅入深、由课内向课外相机
Primary mathematics classroom teaching, refers to the contents of mathematics learning from the class to the depth or extra-curricular extension and reasonable penetration. Can be the main content of the radiation, bedding and continuity, but also can be a comprehensive knowledge of the point, deepen and improve. Effective classroom teaching can calm the classroom and make waves. On the one hand, the content of this course can be sublimated and summed up. On the other hand, it paves the way for students’ follow-up study and paves the way for optimizing the teaching effect. Many math teachers are well versed in this theory, attaches great importance to the expansion of classroom teaching, the teaching content from easy to difficult, from shallow to deep, from class to extracurricular camera