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[背景分析]“实践与综合应用”作为新课程增加的内容,强调让学生主动从事观察、实验、类比、归纳、猜测等探索、发现性的思维活动,在自主探索过程中掌握知识、技能、数学思想和方法。在问题解决的过程中,强调“猜想—验证”的方法,即在已有知识与经验的基础上提出猜想,然后通过
[Background Analysis] As an added content of the new curriculum, “Practice and Comprehensive Application” emphasizes that students should actively explore and discover such activities as observation, experiment, analogy, induction and guessing, grasp their knowledge, skills, Mathematical thinking and methods. In the process of problem solving, emphasizing the “guess - verification” approach, that is, based on the existing knowledge and experience of the conjecture, and then by