运用电教手段教学“角的度量及画法”曲靖师范附一小王丽端角的度量及画规定度数的角，是教学的一个难点。其主要原因是教具量角器上刻度小。学生认识量角器的中心、两圈刻度及数度数有困难。学生看不懂量角器．量角时便不知量角器应怎么摆放，也不知该如何读出刻度。如果... The use of teaching methods of teaching “angle measurement and painting method” Qujing Normal with a small angle of Wang Li angle measurement and painting the angle of the degree, is a difficult teaching. The main reason is the teaching of protractor on the scale of small. Students know protractor center, two laps and several degrees have difficulty. Students can not understand protractor. Do not know when the amount of angle protractor should be placed, I do not know how to read the scale. in case...