Exploring Measurement Precision and Error
Explore how measurement precision affects accuracy. Compare absolute, relative, and percent error using different measurement tools.
Tâche 1
Putting It All Together
Answer these open ended questions on your own or with others to form deeper math connections.
Tâche 2
What do we mean when we say that a measurement is "more accurate"?
Tâche 3
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?
Tâche 4
Summarize what you discovered about measuring errors.
Tâche 5
You bought a cheap thermometer, and the seller explained that if it shows , the actual temperature is . What is the absolute error?