【教学案情】最近,笔者观摩了吴老师执教的《观察物体》一课。这是在学生学会从前、后、左、右四个方位观察物体的形状的基础上教学的,旨在通过学生经历观察物体的活动,认识物体的正面、侧面和上面,理解从一个角度看,最多只能同时看到3个面,并能根据物体视图的形状判断出是从哪个位置观察的,以此来发展学生的空间想象和推理能 【Teaching case】 Recently, I observed Wu teacher coaching “observation object” a lesson. This is based on the students learn to observe the shape of the object from the front, rear, left and right four directions based on the teaching, designed to observe the object’s activities through student experience, understanding the front, side and top of the object to understand from a perspective, Can only see three surfaces at the same time, and according to the shape of the object view to determine from which position to observe, in order to develop students’ spatial imagination and reasoning