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【教学内容】苏教版小学数学三年级上册第111页第10、11、12题。【教材简析】本节课的复习内容包括长方形和正方形的特征,周长的含义,以及长方形、正方形等平面图形周长的计算方法。教材安排了三道复习题,体现出三个特点:一是综合性,习题内容不仅仅涉及某个知识点,而是每道题都基本融合了图形的特征、周长的含义、周长的计算等内容;二是层次性,每道题的解决,都可用最基本的方法,也能根据图形的特点较
Teaching content】 【Sujiao primary school mathematics grade three on the first 111 pages of the first 10,11,12 questions. [Textbook analysis] The review of this lesson includes the characteristics of rectangular and square, the meaning of the perimeter, as well as rectangular, square and other graphical calculation of perimeter. Textbook arranged three review questions, reflecting the three characteristics: First, comprehensive, exercises not only involves a knowledge point, but each question basically combines the characteristics of graphics, the meaning of perimeter, perimeter Calculation and other content; the second is the level of each problem to solve, can be the most basic method, but also according to the characteristics of the graphics