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教学目标本课教学内容主要有两点:能用一定办法证明空气的存在;了解人类对空气性质的利用。小学三年级的学生,对空气有一定认识,但实验的规范性不够,对问题的探究深度不够。具体目标如下:
Teaching Objectives There are two main teaching content: to prove the existence of air with a certain way; to understand the use of human nature of the air. Third grade primary school students have a certain understanding of the air, but the experimental norms are not enough, the depth of the issue of inquiry is not enough. Specific goals are as follows: