论文部分内容阅读
角是“空间与图形”领域中一个非常重要的知识点．课标要求：“通过丰富的实例,进一步认识角；会比较角的大小,能估计一个角的大小；会计算角度的和与差,认识度、分、秒,并会进行简单换算；了解补角、余角,知道同角或等角的余角相等、同角或等角的补角相等．”下面对有关角的一些重要题型进行分析．
Corner is a very important knowledge point in the field of “space and graphics”. Course standard requirements: “through a wealth of examples, to further understand the angle; will compare the size of the angle, can estimate the size of an angle; will calculate the angle of the sum of difference, awareness degree, minutes, seconds, and will be a simple conversion; The angles and angles are the same, and the complementary angles of the same angle or equal angle are equal, and the complement angles of the same angle or equal angle are equal.” The following analyzes some important types of angles.