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数学新课标指出:“要使学生面对实际问题时,能主动尝试着从数学的角度运用所学知识和方法寻求解决问题的策略”。画图策略是通过画图帮助学生把抽象问题具体化、直观化,从而使学生能理解题意和分析数量关系,搜寻到解决问题的突破口。因此注重和利用画图来培养学生解决数学问题的能力显得尤为重要。把画图作为分析数量关系的方式三年级上册已经有初步的用线段图分析问题。例如“王大叔家一共养了50只鸡鸭,卖
The new mathematics lesson pointed out: ”To enable students to face practical problems, can take the initiative to try from the mathematical point of view of the use of knowledge and methods to find a solution to the problem “. Drawing strategy is to help students visualize the abstract problem through drawing, so that students can understand the problem and analyze the relationship between quantity, search for a breakthrough to solve the problem. Therefore, pay attention to and use drawing to develop students ability to solve mathematical problems is particularly important. The drawing as a way to analyze the relationship between the number of third grade volume has been the initial line segment analysis of the problem. For example, ”Uncle Wang raised a total of 50 chickens and ducks, sell