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课程标准提出:“学生的数学学习活动应当是一个生动活泼的、主动的和富有个性的过程。”在教学中,许多已让学生熟知的知识,学生却一错再错,原因之一是教师对教材中的概念、公式、例题等处理缺乏演变,缺少一定的变式训练,使学生的思维未能拓宽,应变能力未能提高。下面从变式教学的特性和高中数学的特点着手,例谈高中数学几种基本的变式教学。一、深化概念变式教学,培养学生思维的严谨性在概念、定理及公式的教学过程中,突出对概念内涵的理解,注
The curriculum standard states: “Students’ math learning activities should be a lively, proactive and personal process.” In teaching, many of the reasons that students have become acquainted with knowledge that students mistakenly repeat them It is a lack of evolution of the concepts, formulas, and examples of teachers in teaching materials, and lack of certain variant training so that students’ thinking can not be broadened and their ability to respond can not be improved. Following from the characteristics of variant teaching and high school mathematics to start with, on several high school mathematics, several basic variant teaching. First, to deepen the concept of variant teaching, cultivate the rigor of student thinking in the process of teaching concepts, theorems and formulas, highlighting the connotation of the concept of understanding, note