Customary or Metric: The Best Unit and Why
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Customary or Metric: The Best Unit and Why
Measurement units for Grade 4: eight best units or readings for length, weight and mass, liquid volume, and temperature, in customary and metric units, then four choices of a unit and the reason it fits. Twelve questions on two pages with an answer key.
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- Pages
- 2
- Last updated
- Time
- About 20 minutes
- Answer key
- Included
- Goes with
- Choosing Metric Units
- Printing
- Black and white
- Related curriculum
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Know how big units are compared with each other (1 km = 1,000 m, 1 lb = 16 oz, 1 hr = 60 min), fill in conversion tables, convert between larger and smaller units in one system, and solve problems with measurements.
Reviewed by Mrs. Catherine Reynolds, Teacher. How we check worksheets
How to use this sheet
- Have the child write the conversion fact at the top of each problem, such as 1 foot = 12 inches.
- Ask whether the number should get bigger or smaller: smaller units mean a bigger number.
- Use the conversion tables on the sheet as a reference for the first problems.
Common mistakes
- Dividing when they should multiply. Going to a smaller unit makes the number bigger.
- Using a metric rule, multiplying by 10, for customary units such as feet and inches.
- Treating time like decimals, so 1 hour 30 minutes becomes 1.30 hours. It is 1.5 hours.
