本文主要介绍了心理学认知建构主义中的图式理论,创新分析了图式理论对教学的重要作用。同时通过牛津译林英语三年级上册Unit 5 Look at me!第1课时的教案,详细地阐述了图式理论是如何在课堂上优化小学中低年级英语教学的:激活大脑已有图式、扩充大脑图式框架、改变图式记忆词汇、通过听促进图式学习、通过情景展示图式、通过作业巩固强化图式。 This paper mainly introduces the schema theory in psychology cognitive constructivism and analyzes the important role of schema theory in teaching. At the same time, I will explain in detail how the schema theory optimizes the English teaching in the middle and lower grades of primary school in the lesson plan of Unit 5 Look at me! Brain Schema framework, change schema memory vocabulary, learning by listening to schemata, schemata through scenario presentation, schemata hardening through assignment.