平面几何是一门逻辑思维非常严密的学科。初中生往往一提起“几何”,就会产生各种疑惑,提出许多问题。怎样掌握学生的心理活动,及时为学生排除疑难,帮助它们打开思路,总结经验教训,激发学生学习平面几何的兴趣,这是长期以来教师共同探讨的问题,就此谈点肤浅看法。一、新概念的引入必须融于原有概念,必须与图形的形成相结合。概念是思维的工具,平面几何中的分析、推理、想象的依据主要是依赖于概念,思维的准确性与概念的清晰是不可分割的。由于学生对一个新概念的接受 Plane geometry is a discipline with very strict logical thinking. Junior high school students often mention “geometry” and they will have a variety of doubts and ask many questions. How to master the students’ psychological activities, eliminate problems for students in a timely manner, help them open their minds, summarize lessons learned, and stimulate students’ interest in learning plane geometry. This is a problem that teachers have long explored together. Let’s talk about superficial views. First, the introduction of new concepts must be integrated into the original concepts and must be combined with the formation of graphics. Concept is a tool for thinking. The basis for analysis, reasoning, and imagination in plane geometry is mainly dependent on concepts. The accuracy of thinking and the clarity of concepts are inseparable. As students accept a new concept