Lesson 3 Non-unit Fractions

    • Let’s learn about non-unit fractions.

Warm-up Notice and Wonder: More than One Part

What do you notice? What do you wonder?

Diagram.

Activity 1 Write and Read Fractions

Each shape in each row of the table represents 1. Use the shaded parts to complete the missing information in the table. Be prepared to explain your reasoning.

a square divided into 4 sections with 1 section shaded
a square divided into 4 sections with 3 sections shaded
a square divided into 4 sections with 4 sections shaded
a rectangle divided into 3 sections with 2 sections shaded
a rectangle divided into 8 sections with 3 sections shaded

number of shaded parts

size of each part

word name for the shaded parts

one-fourth

number name for the shaded parts

a rectangle divided into 6 sections with 4 sections shaded
two squares divided into 8 parts total with 6 parts shaded
two rectangles divided into 12 parts total with 7 parts shaded

number of shaded parts

size of each part

word name for the shaded parts

number name for the shaded parts

Activity 2 Fraction Match

Your teacher will give you a set of cards for playing Fraction Match. Two cards are a match if one is a diagram and the other a number, but they have the same value.

  1. To play Fraction Match:

    • Arrange the cards face down in an array.

    • Take turns choosing 2 cards. If the cards match, keep them and go again. If not, return them to where they were, face down. You can’t keep more than 2 matches on each turn.

    • After all the matches have been found, the player with the most cards wins.

  2. Use the cards your teacher gives you to create 4 new pairs of cards to add to the set.

  3. Play another round of Fraction Match using all the cards.

Practice Problem

Problem 1

  1. What fraction of the rectangle is shaded? Explain how you know.

    Diagram. Rectangle partitioned into 8 equal parts, 5 parts shaded.

  2. Shade of the rectangle.

    Diagram. Rectangle.