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追问于关键处,凸显核心概念在学习《长方体和正方体的认识》时,我们非常强调从面、棱和顶点等几个角度去比较长方体、正方体的特征,并说说它们的相同点和不同点。然后引导学生按面、棱、顶点的次序,找出它们的相点和不同点并整理成表格。一般老师认为这样就是圆满地完成了教学任务,实际上,这只是表面的知识内容呈现。我在学生讨论、归纳之后,接着追问了两个问题:(1)每个面有4条边,6个面应该有
When asked about the key points and highlighting the core concepts When studying “Knowledge of Cuboids and Cubes,” we place great emphasis on comparing the features of cuboids and cuboids from the angles of faces, edges, and vertices, and talking about their similarities and differences . And then guide students to surface, edge, vertex order, find out their points and differences and organize into a form. The average teacher believes that this is the successful completion of teaching tasks, in fact, this is only the surface of the content of knowledge presented. After I discussed and summarized the students, I went on to ask two questions: (1) each side has 4 edges and 6 faces should have