数学是一门抽象性学科,而小学生的思维却有着形象具体的特点,在教学中如果只靠我们教师的说教,孩子们很难理解那些抽象的概念和数学现象。《义务教育数学课程标准》中明确指出:在数学教学中,要充分利用教具、学具、实物,让学生通过操作、画图、模拟、讨论等形式理解数学概念,分析数学知识的形成过程,感受数学的魅力。大量事实证明,在数学教学中运用学具不仅能充分调动学生的学习积极性,还能培养学生的动手操作能力,因此,借助学 Mathematics is an abstract discipline, but primary school students ’thinking has specific image characteristics. Children can hardly understand abstract concepts and math phenomena if they rely solely on our teachers’ preaching in teaching. “Compulsory education mathematics curriculum standards” clearly states: In mathematics teaching, we should make full use of teaching aids, learning tools, in-kind, so that students understand mathematical concepts through the operation, drawing, simulation, discussion and other forms of analysis of the formation of mathematical knowledge process, feel Mathematical charm. A large number of facts have proved that the use of learning tools in mathematics teaching can not only fully mobilize the enthusiasm of students, but also to develop students’ hands-on ability, therefore, with the help of learning