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《义务教育数学课程标准》(2011年版)指出:“学生学习应当是一个生动活泼的、主动的和富有个性的过程。认真听讲、积极思考、动手实践、自主探索、合作交流等,都是学习数学的重要方式。学生应当有足够的时间和空间经历观察、实验、猜测、计算、推理、验证等活动过程。”依据此精神,笔者在教学实践中设计了“三角形的三边关系”实验方案。现展示,供同仁批评、指正。1实验主题通过测量,探索三角形三边之间的数量关系。2实验目的
The Standard of Compulsory Education Mathematics Curriculum Standard (2011 Edition) states: “Students should learn in a lively, proactive and individualized way, listening attentively, thinking positively, starting practice, exploring independently, and cooperating with each other. Students should have enough time and space to go through the process of observation, experiment, speculation, calculation, reasoning, verification and other activities. ”According to this spirit, the author designed“ Trilateral Relations of Triangles in Teaching Practice ” "Experimental program. Now show for my colleagues criticism, correct. 1 Experimental Theme Through the measurement, to explore the quantitative relationship between the three sides of the triangle. 2 experimental purposes