在真实情境中发展核心素养的高三有机化学复习教学案例——以“香豆素-3-羧酸乙酯的合成”为例

Organic Chemistry Review Teaching Case in Senior 3 for Developing Core Literacy in Real Situation of “the Synthesis of Coumarin-3-Carboxylic Acid Ethyl Ester”

基于高三有机化学复习特点,以真实情境为载体,设置综合复杂程度不同的问题,引导学生从有机化合物官能团转化的角度预测物质结构、设计转化路线;从碳骨架和化学键变化的角度理解反应过程,理解共价键的类型、极性与有机反应的关系;利用物理性质设计分离提纯方案,体现出学科内的融合。使学生真正建立"组成、结构决定性质"的基本观念,凸显对比分析、逆合成分析等有机推断问题解题思路,发展高阶思维,促进学生关键能力的提升,促进化学学科核心素养的发展。

Based on the review characteristics of organic chemistry in senior three, taking the real situation as the carrier, this paper sets questions with different comprehensive complexity, and guides students to predict the material structure and design the transformation route from the perspective of the transformation of functional groups of organic compounds. This paper guides students to understand the reaction process from the perspective of the change of carbon skeleton and chemical bond, and understand the relationship between the type and polarity of covalent bond and organic reaction. The separation and purification scheme is designed by using physical properties, which reflects the integration within the discipline, and enable students to truly establish the basic concept of "composition and structure determine nature", highlight the problem-solving ideas of organic inference such as comparative analysis and inverse synthesis analysis, develop high-order thinking, promote the improvement of students’ key abilities and promote the development of core literacy of chemistry.