摘要
介绍了"温度、压强对化学平衡的影响"的教学设计思路,展现了如何利用丰富的实验素材来帮助学生建立温度、压强的影响规律。主要涉及2个环节:(1)通过探讨3种不同特点的平衡体系在冰水和热水浴中的变化过程,帮助学生打破温度影响因素的迷思概念,建立科学规律;(2)通过分析手持技术表征出的汽水平衡和NO_2平衡移动过程中压强的变化特点,帮助学生建立压强的影响规律。
This paper introduced the teaching design idea of the course "the influence of temperature and pressure on chemical equilibrium". It mainly showed that how to use abundant experimental materials to help students establish the influence law of temperature and pressure. It mainly involved two links.(1) Through discussing the changing process of three different balance systems in ice water and hot water bath, the teacher guided the students to break the misconception of temperature condition and establish scientific laws.(2)Through analyzing the characteristics of pressure change in the process of steam-water balance and NO_2 balance movement represented by hand-held technology, teachers guided students to establish the influence law of pressure.
引文
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