Measurement Conversion

Presentation

•

Mathematics

•

4th - 5th Grade

•

Medium

STEPHANIE JOYNER

Used 516+ times

FREE Resource

10 Slides • 8 Questions

Measurement Conversion

Magic Numbers

What are Magic Numbers?

The "relationship" between two units of measurement
The magic number is the number that specifies the difference between two measurements.

Horse = larger unit & fly = smaller unit

Convert the measurement

9 yards = ______ feet
Which unit is larger?
Are you converting a smaller unit into a larger unit, or a larger unit into a smaller unit?

Poll

9 yards = ____ feet

Is yards the smaller or larger unit?

smaller

larger

Convert the measurement

9 yards = ______ feet
Yards is the larger unit, so...
Convert a larger unit to a smaller unit means - Horse to fly, MULTIPLY!
3 feet = 1 yard, so the "magic number" is 3, this is the number you will multiply by.

Multiple Choice

Convert

9 yards = ______ feet

3 feet = 1 yard

12 feet

27 feet

9 feet

Let's try some more!

Horse to fly, MULTIPLY...Fly to horse, DIVIDE of course

Multiple Choice

Step 1: Horse to fly or Fly to Horse? (larger to smaller or smaller to larger)

84 inches = _____ feet

Horse to fly

Fly to horse

I have no idea...

Fly to horse, DIVIDE of course!

Now for Step 2...

Multiple Choice

Step 2: What is the "magic number" between inches and feet?

Look at the conversion chart in the image.

12 inches = 1 foot

6 inches = 1 foot

12 inches = 1 yard

12 inches = 1 foot

The magic number is 12

Multiple Choice

Step 3: Divide

84 inches = _____ feet

84 $\div$ 12 =?

7 feet

6 feet

9 feet

Practice Time...

Are you ready??

Multiple Choice

7 yards = _____ feet

3 feet = 1 yard

10 feet

21 feet

2.5 feet

Multiple Choice

96 feet = _____ yards

3 feet = 1 yard

99 yards

64 yards

32 yards

Multiple Choice

2 yards = ____ inches

12 inches = 1 foot

3 feet = 1 yard

6 inches

72 inches

24 inches

Measurement Conversion

Magic Numbers

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