【教学内容】浙教版复合数量关系的基本结构,两积之和结构。【教学过程】一、多图表征,寻找联系师:在研究学习单上有3道题,开动脑筋好好研究研究。1.解决问题。写一写:看图列式并计算。想一想:为什么这样列式?数量关系是什么?找一找:三道题有什么相同与不同?(学生独立完成)2.反馈交流。师:哪个小组派代表上来展示一下你们的研 【Teaching】 Zhejiao version of the basic structure of the relationship between the number of complex, the product of the sum of two structures. [Teaching process] A multi-chart characterization, looking for contact division: There are 3 questions in the study study list, brains to study well. Solve the problem Write a picture: look at the picture and calculate. Think about it: Why is this column type? What is the quantitative relationship? Find one: What are the same and different three questions? (Student independent) 2. Feedback exchange. Teacher: Which group sent representatives to come and demonstrate your research?