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北师大版 (七年级上册 )第一章第四节 :已知一个几何体(形状大小相同的正方体堆积而成 )确定其主视图 ,左视图和俯视图 (简称三视图 ) ;反过来已知物体的三视图可确定几何体的形状。同学们要想在短时间内掌握并运用好这一新知识点有一定的难度。这里介绍几种解决此类问题的方法
Beijing Normal University Edition (Grade 7) Chapter 1 Section 4: Knowing a geometry (the cubes with the same size and shape) defines its main view, left view and top view (abbreviated as the three views); The three views determine the shape of the geometry. It is difficult for students to master and use this new knowledge in a short period of time. Here are some ways to solve this problem