Lesson 13 Multiply Fractions Game Day

- Let’s multiply a fraction or whole number by a fraction.

Warm-up Number Talk: Multiply One Third

Find the value of each expression mentally.

$\frac{1}{3} \times 3$
$\frac{1}{3} \times 4$
$\frac{1}{3} \times \frac{6}{3}$
$\frac{1}{3} \times \frac{1}{4}$

Activity 1 Fraction Multiplication Compare

Use the directions to play Fraction Multiplication Compare with your partner.
- Spin the spinner.
- Write the number you spun in one of the empty blank boxes. Once you write a number, you cannot change it.
- Player two spins and writes the number on their game board.
- Continue taking turns until all four blank boxes are filled.
- Multiply your fractions.
- The player with the greatest product wins.
- Play again.
- Round 1 $\frac{}{} \times \frac{}{} =$
- Round 2 $\frac{}{} \times \frac{}{} =$
What strategy do you use to decide where to write the numbers?

Activity 2 Fraction Multiplication Compare Round 2

Use the directions to play Fraction Multiplication Compare with your partner.
- Spin the spinner.
- Write the number you spun in one of the four blank boxes.
- Player two spins and writes the number on their game board.
- Continue taking turns until all four blank boxes are filled.
- Multiply your fractions.
- The player with the smallest product wins.
- Play again.
- Round 1 $\frac{}{} \times \frac{}{} =$
- Round 2 $\frac{}{} \times \frac{}{} =$
What strategy did you use to choose where to write the numbers?