实践操作学习活动符合小学生的生理、心理特点、认知水平和数学学科本身的特点;有利于学生参与知识形成的全过程,有助于帮助学生理解和掌握抽象的数学知识,发现内隐的数学规律,形成较稳定性和可迁移性的数学思想方法,获得广泛的数学活动经验,发展学生的主动性、自信心,培养他们勇于探索的精神。 The practical operation of learning activities is in line with the pupil’s physiological and psychological characteristics, cognitive level and the characteristics of mathematics itself; help students to participate in the whole process of knowledge formation, helping students to understand and master abstract mathematical knowledge, to find implicit mathematics Law, form a more stable and migratory mathematical ideas and methods, access to a wide range of mathematical activities experience, develop student initiative, self-confidence, develop their courage to explore the spirit.