In this Singapore math lesson, Mr. Almeida represents fractions on the number line by first defining how many parts make 1 whole. Then naming each part a fractional unit and counting that many units. This illustrates Common Core math standard 3.NF.2.b.
3.NF.2.b - Fractions on the Number Line is a free educational video by MathwithMrAlmeida.It helps students in grades 3 practice the following standards 3.NF.A.2.A, 3.NF.A.2.B,.
1. 3.NF.A.2.A : Represent a fraction 1/b on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into b equal parts. Recognize that each part has size 1/b and that the endpoint of the part based at 0 locates the number 1/b on the number line. (Grade 3 expectations in this domain are limited to fractions with denominators 2, 3, 4, 6, and 8.).