摘要
以"几何概型"引入的两节同课异构的公开课为背景,从情境创设的对比和概念原型的利用两个环节剖析,提出教学设计的改进建议。同时结合"几何概型"引入三个设计要点,即需了解学生的初始能力;要试验探究的合理性;应规避难点集中的问题。
Based on two open lessons with heterogeneous with ＂Geometric Models of Probability＂ as a lead-in, the essay puts forward suggestions from the analysis of two teaching procedures： comparison of teaching situation creation and use of concept prototype. On the three key points in teaching design with ＂Geometric Models of Probability＂ as a lead-in, it is further proposed that： understand the initial capability is important, experiment whether the exploration is reasonable or not is necessary, and difficulties in teaching should be avoided.
关键词
高中数学
几何概型
情境创设
概念原型
课例分析
Geometric Models of Probability
teaching situation creation
concept prototype
