基于慕课的无机化学智慧大单元教学初探——以弱电解质解离平衡为例

doi:10.3866/PKU.DXHX202202002

Abstract

Abstract:

A smart large unit teaching based on massive open online courses (MOOCs) is constructed through the full use of the functions of online MOOCs and large unit teaching. It integrates the concept of large units into MOOC learning, pre-class testing, and classroom discussion tasks, to help students understand and apply the law of weak electrolytes balance in aqueous solutions. The results of the learning evaluation prove that this kind of smart large-unit teaching can improve learning efficiency and students' willingness to learn, and help improve students' core literacy.

Key words: Core literacy, MOOC, Large unit, Inorganic chemistry, Teaching design

Ling Li, Hongfang Chen, Wen Tu, Yingxi Wang. A Preliminary Discussion on the Smart Large Unit Teaching of Inorganic Chemistry Based on MOOCs: An Example from Weak Electrolyte Dissociation Balance[J].University Chemistry, 2022, 37(11): 2202002.

Figures/Tables 7

References 11

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教材单元名称	教学目标	课时数
酸碱质子理论简介	掌握酸碱质子理论，理解共轭酸碱对的概念，理解拉平效应和区分效应，初步掌握酸和碱相对强弱的判断方法	1
水的解离平衡和溶液的pH	掌握水的解离平衡，理解pH与pOH的关系	1
弱酸和弱碱的解离平衡	掌握一元弱酸、一元弱碱的解离平衡及pH的计算	1
盐的水解平衡	掌握强酸弱碱盐，强碱弱酸盐的水解平衡及pH的计算	1
缓冲溶液	理解同离子效应，掌握缓冲溶液的组成和缓冲原理，掌握缓冲溶液pH的计算和缓冲溶液的选择依据	1

大单元主题	教学目标	课时数
弱电解质的解离平衡	掌握酸碱质子理论，理解共轭酸碱对的概念；掌握水的解离平衡、一元弱酸、一元弱碱的解离平衡与盐的水解中质子转移的本质，及三种平衡的内在联系。掌握不同类型弱电解质的pH的计算方法掌握缓冲溶液的缓冲原理，理解化学平衡原理在弱电解质系统中的实际应用	3

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A Preliminary Discussion on the Smart Large Unit Teaching of Inorganic Chemistry Based on MOOCs: An Example from Weak Electrolyte Dissociation Balance

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