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陶行知先生曾说过:与其把学生当天津鸭儿添入一些零碎知识,不如给他们几把钥匙,使他们可以自动去开发文化的金库和宇宙之宝藏。那么,学习化学知识的钥匙就是化学实验。所以,要让学生掌握从化学实验中得到的知识,就应该让学生了解实验的目的,掌握实验内容,学会如何观察实验现象,自己动手去完成实验,并从实验中得到经验和教训,从而掌握化学知识。要做到这一点,教师必须自己要过好实验关,提高化学实验水平,从而才能指导学生了解实验、做好实验,进而改进实验。
Mr TAO Xing-chi once said that instead of adding students to some piecemeal knowledge, it is better to give them a few keys to enable them to automatically develop the cultural treasuries and treasures of the universe. Well, the key to learning chemistry is chemistry. Therefore, to enable students to master the knowledge gained from chemical experiments, students should understand the purpose of experiment, master the experiment contents, learn how to observe the experiment phenomenon, do the experiment by themselves, and gain the experience and lessons from the experiment so as to master Chemical knowledge. To do this, teachers must improve their level of chemistry experimentally and improve the level of chemistry experiment so that they can guide students to understand and experiment well.