动手操作、自主合作探究是学生学习数学的重要方式。学生通过动手操作,能真正参与教学过程,将数学内容以直观的数字、符号等展现出来,克服学习中的枯燥和单调,提高学习效率。但是,在当前强调丰富课堂教学形式,让学生“做数学”的新课改理念指导下,有些教师在组织课堂活动上出现了过多、过滥的倾向,课堂闹闹哄哄,但预设的教学任务完成不了,教 Hands-on, cooperative exploration is an important way for students to learn mathematics. Through hands-on teaching, students can really participate in the teaching process, show the mathematical contents in intuitive numbers and symbols, overcome the boring and monotonous learning and improve the learning efficiency. However, under the guidance of the new curriculum reform concept of enriching the form of classroom teaching so that students can “do math”, some teachers tend to have too many or too many activities in the organization of classroom activities, and the classrooms are noisy but presupposed The teaching task can not be completed, teach