“空气的主要性质”教学片段与分析

Teaching Fragments and Analysis of “Main Properties of Air”

本文通过问题导入,引导学生提出空气能占有一定的空间的猜想,再选择恰当的工具验证猜想。通过实验的启发,探究空气的主要性质。让学生从旧有的经验出发,顺利展开新的思考。经历有结构的思维过程,明确探究主题和思路。用科学知识解释现象,更是激发了学生们对科学探究的兴趣。把学生的思维角度由面落到点,让材料选择与设计实验在学生头脑中的建构真正符合学生的思维特点和技能水平。培养了学生善于合作、严谨求实的科学精神。

In this paper,through the introduction of questions,guide students to put forward the conjecture that air can occupy a certain space,and then choose the appropriate tools to verify the conjecture.Through the inspiration of the experiment,explore the main properties of air.Let the students start from the old experience and start new thinking smoothly.Go through the thinking process with structure,make clear the theme and thinking of inquiry.Using scientific knowledge to explain the phenomenon is to stimulate students’interest in scientific inquiry.The students’thinking angle is from surface to point,so that the construction of material selection and design experiment in the students’mind is really in line with the students’thinking characteristics and skill level,and the students are good at cooperation,rigorous and realistic scientific spirit.