新时代背景下分析化学微课的构建——以滴定突跃为例

doi:10.3866/PKU.DXHX202210048

Abstract

Abstract:

With the development of the internet technologies as well as the influence of force majeure factors, the traditional classroom teaching can no longer meet the needs of modern teaching of analytical chemistry. Micro-lecture is a newly rising and online-based premium digital teaching resource. This paper takes titration jump as the representative subject in analytical chemistry course, and illustrates the construction, contents, and exhibition of the micro-lecture. The application of online micro-lecture in the teaching of analytical chemistry provides a novel idea for traditional classroom teaching.

Key words: Analytical chemistry, Micro-lecture construction, Titration jump

Zhengyan Zhao, Zhaoyin Wang, Liping Xu, Hongli Li, Dayong Chen. Construction of Micro-Lecture in Analytical Chemistry: Taking Titration Jump as an Example[J].University Chemistry, 2023, 38(9): 14-18.

阶段	内容	时长/s
背景铺垫、提出问题	生活实例，滴定分析法介绍	70
知识点讲解(形成及原理)	滴定分析4个过程、滴定曲线、实验视频、滴定突跃概念	220
知识点扩展(作用及条件)	指示剂的选择、滴定突跃的影响因素	105
实际应用	工业烧碱的分析	33
归纳总结、主题升华	滴定突跃在不同滴定分析方法中的共同特征，滴定突跃中“量”的概念	66

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Construction of Micro-Lecture in Analytical Chemistry: Taking Titration Jump as an Example

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