1.图示法:图示法比较两个分数大小的理论依据是分数的意义及几何直觉。图形常画成线段、等边三角形、长方形、圆等规则图形。其优点是直观性强,一目了然,能加深对分数意义的理解。 2.直接比较法:直接比较法就是利用分数大小比较的几条规则直接判断两个分数的大小。这几条规则是:①分母相同的两个分数,分子大的分数比较 1. Graphic method: Graphic method to compare the theoretical basis of the two scores is the meaning of points and geometric intuition. Graphics often drawn into line segments, equilateral triangles, rectangles, circles and other regular graphics. Its advantages are intuitive, clear at a glance, can deepen the understanding of the meaning of the score. 2. Direct comparison method: direct comparison method is the use of fractional size comparison of several rules directly determine the size of the two scores. These rules are: ① denominator of the same two scores, the molecular score comparison