化学实验装置图是记录化学实验的一种特殊文学,为了使学生学会、掌握,正确地绘画出实验装置图,我采取了两种方法:一是使用投影图,二是对实物进行适当的抽象,如酒精灯的灯芯只要用一弯曲线表示等,设计了化学曲线板(见附图)化学曲线板包含20种左右的基本符号图式。利用曲线板边缘的半圆形和曲线还可绘制燃烧匙和石棉网符号图式。这些简单图形只要添加适当的辅助线便可组合成各种化学反应及气体收集装置图。教师和学生用化学曲 The chemical experiment apparatus map is a special literature for recording chemical experiments. In order to enable students to learn, grasp, and correctly draw experimental apparatus diagrams, I have adopted two methods: one is to use projection diagrams, and the other is to properly abstract physical objects. For example, if the wick of an alcohol lamp is represented by a curved line, etc., a chemical curve plate (see the drawing) is designed. The chemical curve plate contains about 20 basic symbol patterns. Using the semicircle and curve on the edge of the curved plate, you can also draw burning symbols and asbestos mesh symbol patterns. These simple patterns can be combined into various chemical reaction and gas collection device maps by adding appropriate auxiliary lines. Teachers and students use chemical music