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综合题包含知识点较多,信息量较大,学生解决较困难,所以培养他们审题,选择好的解题方法,把题目研究得透彻非常重要.笔者现呈现下面这节课的实录,供大家探讨交流.一、教学过程实录一个字母可以表示什么数呢?可以是正数、负数或零,自从负数引入到有理数这个大家庭中后,数的运算就变得丰富多彩起来.本节课我们通过一道综合题的探究,看看最后大家都会有哪些收获.1.对问题的初步认识.探究题目:在数轴上,点A向右移动1个单位得到点B,点B向右移动(n+1)(n为正整数)个单位得
Comprehensive questions include more knowledge points, a large amount of information, students solve more difficult, so training their exam questions, choose a good solution to the problem, the study thoroughly thorough very important. The author now presents the following record of this lesson for everyone First, the teaching process Record a letter can represent what number? Can be positive, negative or zero, since the introduction of negative numbers into the family of rational numbers, the number of operations has become rich and colorful .This lesson we passed A comprehensive study of the question, to see what the end we will gain .1 preliminary understanding of the problem .Investigation topic: On the axis, point A move right to get a unit B, point B to the right (n + 1) (n is a positive integer) units have