Introduction to Fractions Third Grade Common Core Lesson Introduction to Fractions 3.NF1

Fractional parts must have equal parts. Color the shape divided into two parts red. Color the shapes divided into three parts blue. Color the shape divided into four parts green.

Move the symbol over shapes that are not divided into equal parts.

Circle the pictures that are divided into four equal parts.

Circle the pictures that are separated into two equal parts.

The denominator tells how many equal parts are in the whole. This square is divided equally into ____ parts. The total number of parts is the denominator. Two parts out of __ parts are shaded. Fill in the missing denominator. 2

The numerator names part of the whole. This triangle is divided into 4 parts. These shaded parts are the numerator. What parts are shaded? ___ out of 4 parts are shaded. 4 Fill in the missing numerator.

What fraction of the balloons are red? 7

7 4 Color of the balloons blue.