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化学是一门以实验为基础的自然学科,化学实验是初中学化学教学的一个重要组成部分,它对学生理解和形成化学现象、化学概念起着重要的作用。同时化学实验教学还可以激发学生学习化学的兴趣,培养学生的观察和实验能力,有助于培养学生实事求是、严谨的科学态度和学习方法。现就自己在教学中尝试对初中化学常见实验进行的改进与尝试,谈几点粗浅的做法。一、对“O_2和CO_2的物理性质的探究”实验的改进义务教育九年级现行教科书《化学》第一
Chemistry is a natural science based on experiment. Chemistry experiment is an important part of junior high school chemistry teaching. It plays an important role in students’ understanding and formation of chemical phenomena and chemical concepts. At the same time, chemical experiment teaching can also stimulate students’ interest in learning chemistry and develop students’ ability of observation and experiment, which helps to develop students’ realistic and rigorous scientific attitudes and learning methods. Now on their own attempt to teach in junior high school chemistry experiments and improvement of common attempts to talk about a few superficial approach. First, the “O_2 and CO_2 of the physical properties of the” experimental improvement compulsory education ninth grade textbook “Chemistry” first