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近期我有幸参加了《现代与经典》教学观摩大会,汪劲松老师带来的一节《柱体的体积》给我留下了很深的印象。汪老师在教学时通过出示一个长方体,通过体积公式V=SH入手,分析为什么用底面积乘高,然后过渡到正方体、圆柱体也可以用这一公式来求,接着总结这一类立体图形的共同特点,揭示柱体的含义,明确柱体都可以用这一通用的公式来解决这一问题。汪老师的课设计得很紧凑,环环相扣,
Recently, I was fortunate enough to attend the “Modern and Classic” Teaching and Observation Conference. The “Cylinder Volume” brought by Professor Wang Jinsong left a deep impression on me. Wang teacher in teaching through the production of a rectangular body, through the volume formula V = SH start, analyze why the floor area by high, and then transition to the cube, the cylinder can also use this formula to seek, and then summarize this type of three-dimensional graphics Common features, reveal the meaning of the cylinder, a clear cylinder can use this common formula to solve this problem. Wang’s class design is very compact, interlocking,