高中数学第一章立体几何初步1.1.4投影与直观图省公开课一等奖新名师优质课获奖PPT课件.pptx

阶段一,阶段二,阶段三,学业分层测评,1/44,2/44,3/44,不透明,影子,光线,留下影子屏幕,4/44,一点,一点,平行,投影线,5/44,6/44,平行,7/44,45,135,水平面,x,轴,y,轴,不变,8/44,不变,9/44,10/44,中心投影与平行投影,11/44,12/44,13/44,14/44,15/44,16/44,XXX,画平面图形直观图,17/44,18/44,19/44,20/44,21/44,22/44,23/44,画空间几何体直观图,24/44,25/44,26/44,27/44,28/44,29/44,直观图还原和计算问题,30/44,31/44,32/44,33/44,34/44,35/44,36/44,37/44,38/44,39/44,40/44,41/44,42/44,43/44,44/44,