“关系式在初中化学计算中的应用”课例研究

Lesson Study of “Application of Relational Formula in Chemical Calculation of Junior High School”

基于《化学教育》等期刊文献和核心素养的研究成果，分析了关系式在初中化学计算中的地位和作用。通过“关系式在初中化学计算中的应用”课例，提出了高效复习的建议：要宏观认识复习课的目标和功能，帮助学生形成基本的化学观念、提高问题的解决能力、树立自信心。还应精心设计好各个微环节的活动，达到复习效益最大化。

Based on the research of core literacy and related literatures, this paper analyzed the position and function of relational formula in junior high school chemical calculation. Taking the teaching case of ＂application of relational formula in junior high school chemical calculation＂, this paper put forward the suggestions for efficient review： teachers should have a macro understanding of the objectives and functions of the review course, help students to form basic chemistry concepts, improve their ability to solve problems, and build students＇ self-confidence. Teachers should also carefully design the activities of various micro links, so as to maximize the efficiency of review.