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在化学教学过程中,充分发挥“类比思想”的作用是使学生实现有效学习的重要方法之一,应用类比思想可以实现知识的前后贯通,提高课堂效率。本文将类比思想应用于乙醇分子结构确定的教学设计中基于三点考虑:一是希望通过本节课的学习可以有效培养学生知识的迁移能力;二是希望学生能够掌握定性定量分析物质的科学方法;三是希望能让学生了解前沿的科学技术,帮助学生形成安全驾驶意识。一、教学目标1.知识与技能掌握乙醇的分子结构及其与金属钠的反应;了解官能团的定义及乙醇的官能团羟基。
In the process of chemistry teaching, the full use of “analogue ideas” is one of the important methods for students to achieve effective learning. Applying analogy ideas can realize the continuity of knowledge and improve classroom efficiency. This article will be based on the use of analogy in the determination of the molecular structure of ethanol in teaching design based on three considerations: First, hope that this lesson can be effectively studied to develop students’ knowledge transfer ability; Second, hope that students can master the qualitative and quantitative analysis of the scientific method of material Third, it is hoped that students will be able to understand the cutting-edge science and technology and help students form a safe driving awareness. I. Teaching Objectives 1. Knowledge and skills Master the molecular structure of ethanol and its reaction with sodium metal; understand the definition of functional groups and the hydroxyl groups of the functional groups of ethanol.