1. Measuring Weight

2. Standards and Essential Questions
M4M1. Students will understand the concept of weight and how to measure weight.
Use standard and metric units to measure the weight of objects.
Know units used to measure weight (gram, kilogram, ounces, pounds, and tons).
Compare one unit to another within a single system of measurement.

3. What is Weight?

4. What are the Standard Units (customary units) used to measure weight?
Ounce – a toy car weighs about one ounce
Pound – a remote control car weighs about one pound
Ton – a full size car weighs about one ton

5. Standard or Customary Units
Ounce – oz.
Use ounces to measure objects that weigh less than a pound.
16 ounces equals 1 pound.

6. Standard or Customary Units
You would use ounces to measure the weight of a spider.
The spider weighs 2 oz.

7. Standard or Customary Units
Pound – lb.
Use pounds to measure objects that weigh less than a ton, but more than an ounce.
2,000 pounds equals 1 ton.

8. Standard or Customary Units
You would use pounds to measure the weight of the rooster.
The rooster weighs 4 lb.

9. Standard or Customary Units
Ton – T
Use tons to weigh objects that weigh more than 2,000 pounds
1 T (ton) equals 2,000 lbs (pounds)

10. Standard or Customary Units
You would use tons to measure the weight of an elephant.
About how much does the elephant weigh?

11. Standard or Customary Units
About how much does the elephant weigh? Write down your predication. A. 1 T B. 3 T C. 6 T

12. Standard or Customary Units
According to the digital scale at the National Zoo in Washington D.C…… lb

13. About how much does the elephant weigh?
Remember 2,000 lbs equals 1 T
If each ton equals 2,000 lbs you would first round 5,962 and then divide by 2,000.
Round:
5, ?

14. About how much does the elephant weigh?
Since 5,962 lb rounds to 6,000 lbs we would divide

15. Standard or Customary Units
About how much does the elephant weigh? A. 1 T B. 3 T C. 6 T

16. Standard or Customary Units
To practice using Standard or Customary measurement:
-Use your book, page 339, and select the most reasonable unit for the objects.
-Watch a movie