模型1:轴对称概念模型简要分析:轴对称是现实生活中广泛存在的一种现象,学生小学阶段就已经对轴对称图形、对称轴有了直观的认识,并且能够在方格纸上画出一个图形的轴对称图形等。基于学生以上的学习基础,在八年级上册再来学习轴对称,教师应该帮助学生系统地构建以下几个概念:(1)轴对称图形;(2)对称轴;(3)轴对称;(4)对称点。教学建议:由于轴对称现象广泛存在,所以在教学中应该充分结 Model 1: Axisymmetric Concept Model Brief Analysis: Axisymmetry is a phenomenon that exists widely in real life. Students have already gained an intuitive understanding of axisymmetric figures and symmetry axes in primary school and can draw on squared paper Axisymmetric graphics and a graphics. Based on the learning foundation of students, and then study the axisymmetry again in the eighth grade, the teacher should help students systematically construct the following concepts: (1) axisymmetric graphics; (2) symmetry axis; (3) axisymmetric; (4) Symmetrical point. Teaching Suggestions: Due to the widespread axisymmetric phenomenon, so in teaching should be fully knot