勾股定理是初中数学的一个重要内容,它通过直角三角形的三边关系完美地揭示了几何与代数之间的联系,也反映出了几何问题用代数方式解决的学习方向.同时,也为今后的学习打下了基础,特别是高中阶段的解析几何,就是利用计算的方式来研究和解决相关的几何问题. The Pythagorean Theorem is an important part of the junior high school mathematics. It perfectly reveals the connection between geometry and algebra through the three-sided relationship of right-angled triangles. It also reflects the learning direction of solving geometry problems using algebraic methods. At the same time, it is also for the future. The study lays the foundation, especially the analytical geometry in high school, which is to use computational methods to study and solve related geometric problems.