Explain the difference between finding the GCF and LCM Predicted number of barbarians needed
Actual number of barbarians needed
Distance barbarians walked
12 m
8 m

12 m
6 m

12 m
4 m

12 m
2 m

Collect data: First predict the smallest number of barbarians that will be needed to turn the wheel for each case listed below. Then use the Gizmo to test your predictions. Also fill in how far the barbarians had to walk to pull the rocks from point A to point B.

Wheel radius
Axle radius
Predicted number of barbarians needed
Actual number of barbarians needed
Distance barbarians walked
12 m
8 m

12 m
6 m

12 m
4 m

12 m
2 m

Collect data: First predict the smallest number of barbarians that will be needed to turn the wheel for each case listed below. Then use the Gizmo to test your predictions. Also fill in how far the barbarians had to walk to pull the rocks from point A to point B.

Wheel radius
Axle radius
Predicted number of barbarians needed
Actual number of barbarians needed
Distance barbarians walked
12 m
8 m

12 m
6 m

12 m
4 m

12 m
2 m