论文部分内容阅读
变式教学是指教师在引导学生解答数学问题时,变更概念非本质的特征,变更问题的条件或结论;转换问题的形式或内容;创设实际应用的各种环境,使概念或本质不变的一种教学方式.变式教学对提高学生思维能力、应变能力是大有益处的.在数学复习教学中,选好一道例题,通过一题多思,一题多解,一题多讲,可以巩固学生知识,训练学生思维,开拓学生视野.高中数学一轮复习直线方程时有一道例题:过点P(1,4)引一条直线l,与x,y正半轴分别交于A,B点,求当OA+OB取得
Variant teaching refers to teachers in guiding students to answer mathematical questions, change the concept of non-essential features, change the conditions or conclusions of the problem; change the form or content of the problem; create practical application of various environments, so that the concept or essence of the same A teaching method.Change teaching to improve students’ ability of thinking, adaptability is beneficial.in the teaching of mathematics review, choose a good example, through a question, thinking more than one question, more than one question, you can Consolidate the students knowledge, train students thinking, develop students’ horizons.School mathematics a review of linear equations a case study: P (1,4) leads a straight line l, and x, y are the positive half-axed at A, B Point, seeking OA + OB made