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一、课题的提出《数学课程标准》指出:要充分发挥创造性,依据学生的年龄特点和认知水平,设计探索性,弹性、开放性和选择性的问题,给学生提供探索的契机,让学生在观察操作、讨论、交流、猜测、归纳、分析和整理的过程中,理解数学问题的提出,数学概念的形成和数学结论的获得以及数学知识的应用。所以,数学
First, the subject proposed “Mathematical Curriculum Standards” pointed out: To give full play to creativity, based on the age characteristics of students and cognitive level, design exploration, flexibility, openness and selectivity of the problem, to provide students with the opportunity to explore, so that students In the process of observation and operation, discussion, exchange, guessing, inducing, analyzing and arranging, we should understand the problems of mathematics, the formation of mathematical concepts, the acquisition of mathematical conclusions and the application of mathematical knowledge. So, math