Length: Measurement Conversions

1. Architect Seamstress Taxi driver Interior designer Fashion designer Truck driver Carpenter Landscaper Travel agent Farmer Contractor Length: Measurement Conversions Miss Oberlander

2. Here’s a Little Rap to Help! When you are converting on the fly, Bigger to smaller, you multiply! When you’re converting, don’t hide, Smaller to bigger, just divide!

3. How to convert • Given: 48 inches= __________ feet • Step 1: Write what conversion you KNOW between inches and feet in the same order as the problem. Know: ______ inches = 1 foot

4. Step 2: Think  AM I going bigger to smaller or smaller to bigger? Inches  feet (small) TO (big) • If you are going bigger to smaller, you will multiply! x • If you are going smaller to bigger, you will divide! ÷

5. Step 3: Set up a math problem using what you know with what you were given. Know: 12 inches = 1 foot Given: 48 inches 48 ÷ 12 =

6. Step 4: Ask yourself, “Does my answer make sense?” • There are 48 inches in 4 feet.

7. How to convert • Given: 5 miles = __________ feet • Step 1: Write what conversion you KNOW between inches and feet in the same order as the problem. Know: 1 mile = ________ feet

8. Step 2: Think  AM I going bigger to smaller or smaller to bigger? miles feet (big) TO (small) • If you are going bigger to smaller, you will multiply! x • If you are going smaller to bigger, you will divide! ÷

9. Step 3: Set up a math problem using what you know with what you were given. Know: 1 mile = 5,280 feet Given: 5 miles 5,280 x 5 =

10. Step 4: Ask yourself, “Does my answer make sense?” • There are 26,400 feet in 5 miles.

11. How to convert • Given: 52 yards= __________ feet • Step 1: Write what conversion you KNOW between inches and feet in the same order as the problem. Know: 1 yd = ________ feet

12. Step 2: Think  AM I going bigger to smaller or smaller to bigger? Yards  feet (big) TO (small) • If you are going bigger to smaller, you will multiply! x • If you are going smaller to bigger, you will divide! ÷

13. Step 3: Set up a math problem using what you know with what you were given. Know: 1 yard = 3 feet Given: 52 yards 52 x 3 =

14. Step 4: Ask yourself, “Does my answer make sense?” • There are 156 feet in 52 yards.

15. What about Conversions with Metric? • The steps remain the same! • Just remember the conversions we memorized: • 1,000 millimeters = 1 meter • 100 centimeters = 1 meter • 10 decimeters = 1 meter • 1,000 meters = 1 kilometer • Multiplying and dividing with 10s is even easier! • That’s why the rest of the world prefers to use METRIC rather than customary measurement.

16. How to convert • Given: 200 centimeters = __________ meters • Step 1: Write what conversion you KNOW between inches and feet in the same order as the problem. Know: ___________centimeters = 1 meter

17. Step 2: Think  AM I going bigger to smaller or smaller to bigger? centimeters meters (small) TO (big) • If you are going bigger to smaller, you will multiply! x • If you are going smaller to bigger, you will divide! ÷

18. Step 3: Set up a math problem using what you know with what you were given. Know: 1 meter = 100 centimeters Given: 200 centimeters 200 ÷ 100 =

19. Step 4: Ask yourself, “Does my answer make sense?” • There are 2 meters is the same as 200 centimeters.

20. How to convert • Given: 45 kilometers = __________ meters • Step 1: Write what conversion you KNOW between inches and feet in the same order as the problem. Know: 1 kilometer = 1,000 meters

21. Step 2: Think  AM I going bigger to smaller or smaller to bigger? kilometers meters (big) TO (small) • If you are going bigger to smaller, you will multiply! x • If you are going smaller to bigger, you will divide! ÷

22. Step 3: Set up a math problem using what you know with what you were given. Know: 1 kilometer = 1,000 meters Given: 45 kilometers 45 x 1,000 =

23. Step 4: Ask yourself, “Does my answer make sense?” • There are 45,000 meters is the same as 45 kilometers.