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要提高教学质量,在教学过程中必须有讲有练。讲与练是不可分割的两部分,在课堂教学中,要少而精地进行讲解,同时还必须在少而精讲解的基础上,有计划有目的地指导学生练习。只有当学生通过这种实践活动以后,学生才有可能把教师所讲的知识真正学到手。因而,课堂练习对于提高教学质量有很重大的意义。如何才能组织好课堂中的“练”,使它充分发挥作用呢?下面是我在立体几何教学中的几点体会: (一) 练习题的选择 (1) 练习的內容要“精”,毛主席教导我们解决问題要抓主要矛盾,因而在讲课时要精讲,同样,练的內容也要精选。一节课总共只有五十分钟,课堂练习的时间是有限的,如果把一节课讲的所有知识不分主次地
To improve the quality of teaching, there must be speaking and practice in the teaching process. Speaking and practicing are two parts that are inseparable. In class teaching, we must explain it in a small and intensive manner. At the same time, we must plan and purposely guide students in practice on the basis of a small but elaborate explanation. Only after the students have passed this practical activity will the students be able to truly learn the knowledge that the teachers speak. Therefore, classroom exercises are of great significance for improving the quality of teaching. How can we organize the “training” in the classroom so that it can make full use of it? Here are some of my experiences in the teaching of solid geometry: (1) Selection of practice questions (1) Contents of practice should be “fine”, hair The chairman taught us to solve the problem and grasp the main contradiction. Therefore, we must explain the lesson carefully, and the content of the training should also be carefully selected. A total of only 50 minutes in a class, the time of the class practice is limited, if all the knowledge of a class is divided