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考查学生对对称部分知识的理解,如果仿照几何课本p.26页例2或p.105页例2(人教版四年制初二)的方法,让学生画一个关于某直线或某对称中心的对称图形,那么,学生只需把课本例题的方法“复制”即可。根本不能考查出学生对几何变换思想的掌握情况,更考查不出学生的创新精神和空间想象能力。为此,本人编拟了下面这道题,可以作为一道考题,也可以作为探索学习的一个素材,尤其适合
Examine the student’s understanding of the symmetric part of the knowledge, if you follow the method of geometry textbook p.26 page 2 or p.105 page 2 (PEP four-year system 2), ask the students to draw a line or a center of symmetry. Symmetrical graphics, then, students only need to “copy” the method of textbook example. It is impossible to examine students’ grasp of the idea of geometric transformation and to examine students’ innovative spirit and spatial imagination. For this reason, I have prepared the following questions, which can be used as an exam question or a material for exploration study, especially suitable for