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如何将“平行四边形和梯形”复习课上得让学生爱听?如何将这个单元的知识点整合在短短40分钟?带着这样的思考,我走进了数学课堂。(开始上课了,我拿出一张长方形纸)师:同学们看,这是什么图形?生:长方形。师:你看到几个长方形?继续看!(我将长方形纸对折,再对折,展开)师:现在,你们看到几个长方形啦!生:4个、6个、10个。师:到底几个呢?谁能说说你的想法?生:我认为是10个,用算式4+3+2+1=10表示。
How to “Parallelogram and Trapeze” review class for students to listen to? How to integrate the knowledge of this unit in just 40 minutes? With such thinking, I went into the math class. (Start class, I took out a piece of rectangular paper) Teacher: Students look, what is this graphic? Students: rectangular. Teacher: Do you see a few rectangles? Continue to read! (I folded the rectangular paper, and then fold, expand) Teacher: Now, you see a few rectangular it! Health: 4, 6, 10. Teacher: In the end a few? Who can talk about your ideas? Health: I think it is 10, with the formula 4 +3 +2 +1 = 10 said.