Grade 4/Measurement
Compare Customary Weights
Compare customary weights using <, >, or =.
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Quick Tip
16 oz = 1 lb (pound) | 2,000 lb = 1 T (ton)
Teacher Resources
Teaching Notes
This collection focuses on compare customary weights. Ensure students understand the relationship between ounces, pounds, and tons.
Vocabulary
Compare: Say if one is greater, less, or equal.
Weight: How heavy something is.
Common Mistakes
- Confusing the conversion factors (16 vs 2000)
- Multiplying instead of dividing
- Forgetting to label units
- Incorrect conversion factors.
- Not converting to a common unit.
- Confusing < and > symbols.
- Mental math errors during conversion.
Differentiation
SupportProvide a conversion chart. Use real-world examples like a loaf of bread (1 lb) or a small car (1-2 tons).
ChallengeChallenge students to convert across multiple steps or use decimals.
Discussion Questions
- Why do we use tons for heavy things like cars?
- How many ounces are in half a pound?
- When would you use pounds instead of ounces?
- Why must units be the same to compare weights?
- How many ounces are in 2.5 pounds?
- When would you use tons instead of pounds?
- What real-world items are measured in each unit?
Extension Activities
- Weigh objects in the classroom.
- Estimate weights of various items.
- Research weights of animals.
Parent Tip
Have your child compare the weights of different fruits or vegetables.
Learning Path
Skill Cluster
Measurement
Estimated Time
15 minutes
Skills Practiced
compare customary weights
Prerequisites
- 983
- Multiplication and Division Fluency
- Understanding of Customary Weight Units
Next Steps
- Solving Customary Weight Word Problems
- Multi-step Customary Unit Conversions
- Customary Weight Conversions
- Solving Weight Word Problems
- Compare Metric Weights