指向学科大概念的高中物理U型教学策略——以“机械能守恒定律”教学为例

学科大概念向下统领学科内核心知识,向上构成学科核心素养的基本框架,指向学科结构的中心,因此它不只是一个聚合概念,也是连接学科知识与学科核心素养的工具和媒介^1,2].以"机械能守恒定律"教学为例探讨基于大情境,促进还原与下沉,激活学科大概念;基于大问题,促进探究与整合,建构学科大概念;基于大反思,促进反思与上浮,迁移学科大概念.

The U Style Teaching Strategy on Pointing Big Conceptsof the Subject in High School Physics——Taking Law of Conservation of Mechanical Energy Teaching as an Example

From the down side,the subject big concept leads the core knowledge of the subjects.From the up side,it forms the essential frame of core competence of subjects.It points to the center of the structure of subjects.Thus,it is not only a concept of aggregation,but also a tool and medium connecting the knowledge and core competence.This paper aims to explore the“Law of Conservation of Mechanical Energy”teaching:Based on the big context,it promotes the true and deep learning,which motivates the subject big concept.Based on the meaningful question,it promotes the exploration and integration,which constructs the subject big concept.Base on the extensive reflection,it promotes the real reflection and further learning,which combines and connects subject big concept.