Exploring Measurement Precision and Error
Exploring Measurement Precision and Error
Explore how measurement precision affects accuracy. Compare absolute, relative, and percent error using different measurement tools.
Putting It All Together
Answer these open ended questions on your own or with others to form deeper math connections.
Open-ended question 1
What do we mean when we say that a measurement is "more accurate"?
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Open-ended question 2
Use the app above to investigate the percentage errors when measuring a long and a short arrow, using the three rulers. How does the percentage (or relative) error change when the arrow is shorter?
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Open-ended question 3
Summarize what you discovered about measuring errors.
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Open-ended question 4
You bought a cheap thermometer, and the seller explained that if it shows , the actual temperature is . What is the absolute error?
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Prerequisite Resources
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