概念是反映事物本质属性的思维形式,事物的本质属性决定了事物的性质,这也是概念区别于其他事物的特征所在。学生对概念的理解直接影响着他们的数学学习。分数作为数概念的重要组成部分,是数域的一次扩展,从整数系到有理数系,是学生认识过程中的一次飞跃。所以,分数学习对于学生来说具有非常重要的意义,其一,分数具有特殊性和抽象性,对学生数学思维能力的发展起到重要作用;其二,分数、百分数在生活中运用广泛,能够帮助学生沟通数学与生活的 Concept is a form of thinking that reflects the essential attributes of things. The essential nature of things determines the nature of things, which is also the characteristic of the concept different from other things. Students understand the concept of a direct impact on their mathematical learning. As an important part of the concept of number, the score is an extension of the number field. From integer system to rational number system, the score is a leap forward in the process of students’ cognition. Therefore, fractional learning is of great significance to students. First, the fraction is special and abstract, which plays an important role in the development of students’ mathematical thinking ability. Second, fractional and percentile are widely used in life. Help students to communicate math and life