Measurement

Biloxi Schools2011

What do you remember???

• How many feet in a yard?• How many quarters in a dollar?• How many minutes in an hour?• How many quarts in a gallon?• How many meters in a

kilometer?

Think about it…

• Sandy needs to purchase some ribbon for a project she is working on. At Store A, the ribbon costs $0.25 per inch. At Store B, the same ribbon costs $6.75 per yard. Which store has the better buy on the ribbon that Sandy needs?

Conversion Rates• Conversion Rates are special ratios

that are created from equivalent measurements having different units.

• Example: 1 foot to 12 inches is a “conversion rate” because 1 foot and 12 inches are equivalent measures in different units.

• Can you think of other conversion rates?

Conversion Rates for Length

1 yard

3 feet

36 inches

RATES (one way)

•Yards to feet

•Feet to inches

•Yards to inches

RATES (the other way)

•Feet to yards

•Inches to feet

•Inches to yards

How many feet in 1 yard?

How many inches in 1 yard?

Yards to InchesBilly and Mark were instructed to

convert 7 yards to inches. Each boy converted differently.

Yards to Inches• Convert 3 yards to inches

What goes in denominator?

What goes in numerator?

Feet to Yards• Convert 8 feet to yards

Feet to Inches• Convert feet to inches

Pool Party• Raul is having a pool installed. His

father asks him to measure one side and his sister to measure the other side. Here is what each measured.

52 inches

10 feet

Pool Party

52 inches

10 feet

What is the perimeter of Raul’s pool in inches?

What is the perimeter of Raul’s pool in feet?

Pool Party• Raul’s father plans to purchase

tile to go around the perimeter of the pool. How much will the pink tile cost to go around the pool? How much will the green tile cost?

Think about it…

• Sandy needs to purchase some ribbon for a project she is working on. At Store A, the ribbon costs $0.25 per inch. At Store B, the same ribbon costs $6.75 per yard. Which store has the better buy on the ribbon that Sandy needs?