化学习题课对学生掌握化学基础知识,提高化学基本技能,以及分析问题和解决问题的能力起着重要的作用.要上好习题课,首先要精选难易适度、具有启发性、开放性的典型题例;其次,要认真做好事试题讲评,着重讲解解题思路、技巧和规范,启迪学生思维.一、精选典例示范讲解例题教学不仅有助于学生理顺解题思路,复习巩固知识和明确解题规范,更重要的是可以培养学生多方面的能力,但由于课堂时空有限,化学习题类型繁多,不可能面面俱到.因此,教 Chemistry exercises class to master the basic knowledge of chemistry, improve the basic skills of chemistry, as well as the ability to analyze and solve problems plays an important role. To take a good exercise class, we must first select the difficult, moderate, instructive, open Typical examples; Second, we should conscientiously do a good job on the topic commentaries, focusing on explaining the problem-solving ideas, skills and norms, enlighten students thinking.Examples of selected examples to explain the sample teaching not only help students to rationalize the problem-solving ideas, review consolidation Knowledge and clear problem-solving norms, more importantly, can develop students’ abilities in many aspects, but due to the limited time and space in class and the large variety of chemical exercises, it is impossible to teach everything