《三角形的三边关系》是七年级数学《三角形》中的内容,本节课通过学生动手实践、自主探索从而发现规律,并应用其规律解决问题,使学生经历了一次自主获取新知的成功体验,体现了“重过程,轻结果”的新理念。我们知道在数学教学中一个结论若由教师“给出”往往只需几分钟,让学生动手实践、探索、发现规律可能是 “Triangular Trilateral Relations” is the content of the seventh-grade mathematics “Triangle”. This lesson learns the rules through students’ hands-on practice and independent exploration, and applies their laws to solve problems, so that the students have experienced a successful experience of acquiring new knowledge independently. , reflects the “re-process, light results” of the new concept. We know that a conclusion in mathematics teaching is often only a few minutes if given by the teacher, so that students can begin to practice, explore, and discover that the law may be