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一、在备课中重视基础知识的钻研,为课堂教学作好充分准备明确基础知识在整个教材中的地位和作用。这一工作往往是在全书备课后分章分节备课时进行,如“排列、组合”概念和基本公式不仅是解答排列、组合的应用问题的基础,而且是学习二项式定理以及将来学习概率论、群论等学科的基础知识;另一方面,排列组合问题的基本概念又在于排列、组合的定义,因此我把定义排列、组合一课,提到了极其重要的地位。切实掌握教材的疑点、准点和重点。课堂教学中能否使学生懂透、能用的关键在于教师对于教材内容的掌握程度即对教材的疑点、难点和重点的理解程度,因此我把这一问题作为备课的主要内容。寻找解开疑点、突破难点、突出重点的途径。教师
First, pay attention to the study of basic knowledge in preparation for classes, make full preparations for classroom teaching and clarify the status and role of basic knowledge in the entire teaching material. This work is often carried out after the book is prepared in separate chapters and sections. The concepts such as “arrangement, combination” and basic formulae are not only the foundation for solving the problems of arrangement and combination, but also the binomial theorem and future learning probability. On the other hand, the basic concept of permutations and combinations lies in the definition of permutations and combinations. Therefore, I have mentioned an extremely important position in the definition, permutation and combination of lessons. Effectively master the suspicious points, punctuality, and focus of textbooks. The key to whether or not students can understand and use them in class teaching lies in the mastery of the content of the teaching materials, that is, the degree of understanding of the suspicious points, difficulties, and priorities of the teaching materials. Therefore, I regard this issue as the main content of lesson preparation. Find ways to solve doubts, break through difficulties, and highlight key points. teacher