课堂教学是一种复杂的认知活动,教师只有顺应学生的思维特征才能激活学生的大脑,激发学生的学习兴趣,学生才能真正转化为学习的主体。数学内容比较抽象,而小学生又以形象思维为主,因此将抽象转化为形象就显得尤为重要。教师应努力把教材的抽象变为具体、无声变为有声、静态变为动态,把教材中能反映“变化”的内容用活生生的画 Classroom teaching is a complex cognitive activity. Only when the teacher complies with the thinking characteristics of the students can activate the students ’brains, and the students’ interest in learning can be stimulated, so that the students can really turn into the main body of learning. Mathematical content is more abstract, and primary students are mainly image thinking, so the abstract into the image is even more important. Teachers should make every effort to make the abstraction of textbooks concrete, silent into a sound, static into a dynamic, the textbook can reflect “change ” with the living painting