Lesson 14 Area Situations

- Let’s apply what we’ve learned about fraction multiplication.

Warm-up Number Talk: Multiply Fractions

Find the value of each expression mentally.

$3 \times (10 \div 2)$
$\frac{3}{2} \times 10$
$(\frac{14}{7}) \times 10$
$14 \times \frac{10}{7}$

Activity 1 Info Gap: Area

Your teacher will give you either a problem card or a data card. Do not show or read your card to your partner.

Diagram. information gap procedure. Problem Card Student. Data card student.

Pause here so your teacher can review your work. Ask your teacher for a new set of cards and repeat the activity, trading roles with your partner.

Activity 2 Fill in the Blank

Fill in the blanks to make each equation true. Be prepared to explain your reasoning.

$\frac{1}{3} \times 18 =$
$\frac{7}{9} \times$ $= \frac{21}{9}$
$\frac{1}{15} \times$ $= 2$
$9 \times 6 \frac{2}{3} =$
$14 \frac{99}{100} \times 10 =$
$7 \frac{3}{5} \times 6 =$
$4 \times 6 \frac{9}{10} =$

Practice Problem

Problem 1

A banner at a sporting event is 8 feet long and $2 \frac{1}{3}$ feet wide.

Sketch and label a diagram of the banner.
Find the area of the banner.