论文部分内容阅读
教学内容人教版《义务教育课程标准实验教科书·数学》四年级下册第五单元中的“三角形的内角和”。教学目的1.理解“三角形的内角”及“三角形的内角和”的基本含义。
Teaching content PEP “compulsory education curriculum standard experimental textbook mathematics” fourth grade volume fifth unit in the “triangle of angle and.” Teaching Objectives 1. Understand the basic meaning of “inner corner of triangle” and “inner corner of triangle”.