教学内容:苏教版课程标准实验课本数学二年级下册《观察物体》。片断一(教师甲):选择比学生略高的书柜置于教室,引导学生依据生活经验认识书柜的正面、侧面和上面,在此基础上进行《观察物体》的教学。(1)请两位学生分别站在书柜的左前方进行观察:一人站在地面上观察,比书柜矮; Teaching content: Sujiao version of the curriculum standard experimental textbook grade two volumes “observation object.” Piece 1 (Teacher A): Choose a slightly higher than the students bookcase placed in the classroom, and guide students to learn from the experience of life on the front, side and top of the bookcase, on the basis of “observation object” teaching. (1) Ask two students to stand separately in the left front of the bookcase for observation: one observes on the ground, shorter than the bookcase;