摆脱题海,以课本为本,充分发挥课本例习题的训练功能.使学生掌握知识、发展能力在中学数学教学中已成为共识.本文以自己的教学实践,浅谈利用课本例习题发展学生思维能力的点滴经验.一、一题多解,拓广思路,培养思维的发散性.讲解四点共圆的证法,复习时可选《几何》(二)P163 11题:过正方形对角线上任意一点,引两直线平行于边.那么这两直线与边的四个交点同在一个圆上.如图1 Get rid of the sea, the textbook-based, give full play to the textbook case exercises training function.Make students grasp the knowledge and development ability in the middle school mathematics teaching has become a consensus.This article with their own teaching practice, the use of casebook exercises to develop students thinking The ability of drip experience. A problem-solving, broaden ideas, develop the divergence of thinking. Explain the four-point total of the card law, review optional “geometry” (two) P163 11 questions: over a square diagonal On any point, lead the two lines parallel to the edge. Then these two lines and the edge of the four intersection with a circle on .As shown in Figure 1