近期听了某地区的高中数学评优课,课题是“用二分法求方程的近似解”,学生来自一所四星级学校的高一年级.各位选手的教学设计精彩纷呈,以下选取有代表性的四篇设计方案,从新课引入和细节处理两个方面做一些对比分析.1四种不同的新课引入方案11)创设情景,利用CCTV幸运52节目—— I recently attended a high school mathematics appraisal class in a certain area. The topic was “Approximation of equations by dichotomy”. The students came from a high school in a four-star school. The contestants’ teaching design was brilliant. Sexual four design projects, from the introduction of new lessons and details of the handling of two aspects to do some comparative analysis. 1 four different new lesson introduction program 11) create scenarios, use the CCTV Lucky 52 program -