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前不久,本文作者郭晓梅老师(以下称“郭老师”)做了一节全校示范课,课题是人教版《数学》八年级下册第十八章第2节“特殊的平行四边形(第3课时)——正方形”。本节内容是在学生掌握了平行线、三角形、勾股定理、平行四边形、矩形、菱形及轴对称等平面几何知识,并且具备初步的观察、操作等活动经验的基础上进行的,其目的是加深学生的理论知识,拓宽学生的知识面,提高学生运用知识的能力。
Not long ago, the author of this paper, Guo Xiaomei (hereinafter referred to as “Guo”) did a whole school demonstration class, the topic is the PEP “mathematics” eighth grade second chapter eighth chapter second “special parallelogram (Lesson 3) - Squares ”. This section is based on students’ knowledge of plane geometry such as parallel lines, triangles, Pythagorean theorems, parallelogram, rectangle, rhombus, and axisymmetric, with preliminary experience in activities such as observation and operation Deepen students ’theoretical knowledge, broaden students’ knowledge and enhance their ability to apply knowledge.