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人教版七年级下册《数学》与其配套的教师教学用书(以下简称教材与教参)中的习题与解答,存在几处错误与漏洞。有的,解法不完善;有的,解法可以优化;有的,解法不太适合;致使这些习题达不到复习与巩固的目的,也给教学带来不便,现分析如下:1.教参提示与习题不符。教材在第116页第2
There are several mistakes and loopholes in the exercises and answers in the book “Mathematics” of the seventh grade of the People’s Education Press and its accompanying teachers’ teaching books (hereinafter referred to as textbooks and teaching aids). In some cases, the solution is not perfect; in some cases, the solution can be optimized; in others, the solution is not suitable; resulting in these exercises do not reach the purpose of review and consolidation, but also to bring inconvenience to the teaching, are analyzed as follows: 1. teaching tips Does not match the exercise. Textbooks on page 116 No. 2