Warm Up

1. Write the verbal phrase as a power: Four to the third power: ______________

2. Evaluate the expression:3 • 42 = _____(5-2) ÷ 1 = _____

3. 4 ft.

6 ft.

Perimeter = ________Area = _________

Think/Pair/Share

• 5 ways measurements are used in real life• 5 jobs that use measuring

Carpenter’s Game!

• http://www.primarygames.com/math/carpenterscut/

Use Unit Analysis

Chapter 1, Lesson 4

Equivalent Measures of Length

• 12 in = 1 ft• 3 ft = 1 yd

• 1760 yd = 1 mi.• 36 in = 1 yd• 5280 ft = 1 mi.

Converting inches to feet

How many inches are in 2 feet??

• We know that there are 12 inches in 1 foot

• So in 2 feet… …there are 24 inches!

12 inches

FOOT

FOOT FOOT

12 inches 12 inches

You try!

• How many inches are in 4 feet?

12 inches 12 inches 12 inches 12 inches

Converting feet to yards

How many feet are in 3 yards??(3 feet = 1 yard)

There are 9 feet in 3 yards!

YARD YARD YARD

3 feet 3 feet 3 feet

You try!

• How many feet are in 5 yards?

3 feet 3 feet 3 feet

3 feet 3 feet

Converting Inches to Yards

• There are 12 inches in 1 foot• There are 3 feet in 1 yard• So…How many inches are in 1 yard???

12 + 12 + 12 = OR 12 • 3 =

Yard

Foot Foot Foot

You try!

How many inches are in 2 yards??