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笔者认为:数学教学要自然——符合人类认知的需求和习惯,直观而有序;要简约——适应数学的根本追求,教学内容聚焦,教学环节简化;还要求实——把握数学知识的本质,让学生学得踏实。下面以高中数学“异面直线”的教学为例,对此进行简单说明。一、复习回顾投影或预先在黑板上画一个三棱柱
The author thinks: mathematics teaching should be natural - in line with the needs and habits of human cognition, intuitive and orderly; to be simple - to adapt to the fundamental pursuit of mathematics, focusing on teaching content, teaching simplification; also requires reality - to grasp the mathematical knowledge Essence, so that students learn practical. The following high school mathematics “heterogeneous straight line ” teaching, for example, a brief description. First, review the retrospective projection or pre-draw a triangular prism on the blackboard