一、教学内容三年级下册第27~29页的例1和“想想做做”。1.使学生在解决问题的过程中初步学会从所求问题出发,展开分析和思考,依据数量关系确定解决问题的思路。2.使学生在对解决问题过程的不断反思中,感受策略价值,增强策略意识,进一步积累分析和解决问题的经验。3.教学过程:图式助学,自助探究天天和宝葫芦带300元去商场购物。最多剩下多少元? First, the teaching content of the third grade Volume 27 ~ 29 of Example 1 and “think about doing ”. 1. To enable students to initially solve the problem in the process of starting from the desired problem, analyze and think, according to the relationship between the numbers to determine the way to solve the problem. 2. To enable students to continuously reflect on the process of problem solving, feel the value of strategy, enhance their strategic awareness and further accumulate experience in analyzing and solving problems. 3 teaching process: Schema student, self-exploration and treasure hoist with 300 yuan to the mall shopping. What is the most left?