常言道“几何几何,勾勾角角。先生好教,学生难学”。说出了部分同学,特别是初学几何的同学的心声。依笔者看,也并非都是先生好教,学生都难学,重要的是如何从中找出学习的规律,从中培养和寻找乐趣。 As the saying goes, “geometric geometry, hook angle. Mr. good education, students difficult to learn.” Speaking of some classmates, especially those of beginner geometry students. According to the author, it is not always easy for the students to teach. Students are hard to learn. The important thing is how to find out the rules of learning and cultivate and find fun.