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现行的物理教学大纲和教材,明显地加强了守恒定律的教学内容。但我们有些教师还没有完全理解加强守恒定律教学的重要意义,在教学中对守恒定律的强调是不够的,没有使学生真正建立起守恒定律的观点。具体表现在以下三个方面: 1.对守恒定律不信任。在具体分析一个永动机问题时,如果先分析具体过程,再指出这是不可能的,学生比较信
The current physics syllabus and teaching materials have obviously strengthened the content of the conservation law. However, some of our teachers have not yet fully understood the importance of strengthening the teaching of the law of conservation. The emphasis on the law of conservation in teaching is not enough, and there is no point in making students really establish the law of conservation. Specifically in the following three aspects: 1. Do not trust the law of conservation. In the concrete analysis of a perpetual motion problem, if we first analyze the specific process and then point out that this is not possible, students will be more confident.