这是一堂“做”数学的课。学生们在教师的指导下,用自己的双手通过操作和观察来“做”数学。这堂课的教学内容是义务教育课程标准实验教科书小学《数学》三年级下册《轴对称图形》。教学目标是联系生活中的具体事物,通过观察和动手操作,使学生初步体会生活中的对称现象,认识轴? This is a lesson in “doing” math. Under the guidance of the teacher, the students “do” math with their own hands through manipulation and observation. The content of this course is compulsory education curriculum standard experimental textbook “mathematics” third grade volume “axisymmetric graphics.” Teaching goal is to contact the specific things in life, through observation and hands-on operation, so that students initially understand the symmetry of life, know the axis?