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.


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Putting It All Together

Answer these open ended questions on your own or with others to form deeper math connections.

Pregunta abierta 1

What do we mean when we say that a measurement is "more accurate"?

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Pregunta abierta 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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Pregunta abierta 3

Summarize what you discovered about measuring errors.

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Pregunta abierta 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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