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【教材分析】《平移和旋转》是人教版小学数学二年级上册第41~42页的内容。这部分教学内容在《义务教育数学课程标准》中属于“空间与图形”领域的知识。通过探究,让学生发现和体会:观察一个图形的平移过程,只需观察该图形上任意一点或一条线的平移过程。【教学内容】课本第41~42页《平移和旋转》。【教学目标】1.结合学生的生活经验和实例,初步感知平移和旋转。能在方格纸上确定一个简单图形沿水平方向、竖直方向平移后的距离,并
[Textbook analysis] “Translation and rotation” is the PEP mathematics grade two volume on the first 41 ~ 42 pages of content. This part of the teaching content in “compulsory education mathematics curriculum standards” belongs to the “space and graphics” field of knowledge. By exploring, let the students discover and realize: To observe the translation process of a graphic, just observe the translation process of any point or a line on the graphic. 【Teaching contents】 Textbook 41 ~ 42 “translation and rotation.” 【Teaching objectives】 1. Combination of students’ life experience and examples, the initial perception of translation and rotation. It is possible to determine on the graph paper the distance after a simple graph has been translated in the horizontal and vertical directions and