Objectives
• Convert from one unit to another unit.
Basic Unit Equivalencies
Distances• 12 inches = 1 foot
• 3 feet = 1 yard
• 5280 feet = 1 mile
Basic Unit Equivalencies
Distances
• 1000 meters = 1 kilometer
• 100 centimeters = 1 meter
Basic Unit Equivalencies
Times• 60 seconds = 1 minute
• 60 minutes = 1 hour
• 24 hours = 1 day
Basic Unit Equivalencies
Times• 12 months = 1 year
• 52 weeks = 1 year
• 365 days = 1 year
Basic Unit Equivalencies
Times• 4 quarters = 1 year
• 2 semiannual periods = 1 year
• 1 biannual period = 2 years
Basic Idea Behind Converting
Multiplying by 1 does not change a number.
We just need to pick the right form of the number 1 to multiply by.
Use dimensional analysis to convert 8 yards to feet.
Use dimensional analysis to convert 520 days to years.
Use dimensional analysis to convert 350 feet per second to miles per hour.
Use dimensional analysis to convert 9 square feet to square inches.
Use dimensional analysis to convert 782 cubic inches to cubic yards.
Given 15 porks per 2 pigs and 5 pigs per 3 pokes, convert 40 porks to pokes.
Given 13 morks is 1 gloe, 5 gloes is 1 flit, 7 kits is one lonk, and 10 lonks is 1 gall. Convert 90 morks per kit to flits per gall.
Creator and Producer
Elizabeth Jones
for
The School of Mathematical and Statistical Sciences
atArizona State University
Videographer
Mike Jones
©2010 Elizabeth Jones and School of Mathematical and Statistical Sciences at Arizona State University