Transcript Unit Analysis Intro

Measurement
Biloxi Schools
2011
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
3 feet
How many
feet in 1 yard?
1 yard
inches in 1 yard?
How many 36
inches
RATES (one way)
RATES (the other way)
•Yards to feet
•Feet to yards
•Feet to inches
•Inches to feet
•Yards to inches
•Inches to yards
Yards to Inches
Billy 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 numerator?
What goes in denominator?
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.
10 feet
52 inches
Pool Party
10 feet
52 inches
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?