整合多重表征 促进概念深度理解--以“原电池”为例

Integrating Multiple Representations to Promote Deep Understanding of Primary Battery

有效整合多重表征,是促进学生科学概念深度理解的一种有效策略。本研究整合了科学教育领域中的3个多重表征框架的内容,对高中必修模块的“原电池”进行了教学设计。首先引导学生依次学习原电池的宏观装置、微观原理和电极符号,初步建构原电池概念,之后基于氢氧燃料电池关联表征,让学生建构原电池的装置原理二维模型图,理解原电池概念,最后依托生活中的纽扣电池应用二维模型图实现表征转换,解决实际问题,实现对原电池概念的深度理解。

Effective integration of multiple representations is an effective strategy to promote students’in-depth understanding of scientific concepts.This study integrates the contents of three multiple representations frameworks in the field of science education,and designs the teaching of“primary battery”in the compulsory module of high school.Firstly,guide students to learn the macro device,micro principle and electrode symbols of primary battery in turn,and preliminarily construct the concept of primary battery.Then,based on the related representation of hydrogen and oxygen fuel cell,the two-dimensional model diagram of primary battery device principle is constructed to understand the concept of primary battery.Finally,the two-dimensional model diagram of primary battery in daily life is used to realize the representation transformation and solve practical problems,realize the deep understanding of the concept of primary battery.