Aristotle's Wheel
This animation seems to present a paradox.
A green dot is placed on the outer rim of a wheel.
A blue dot is placed on the inner radius of the wheel.
[You can change the size of the inner radius by dragging the BLUE dot.]
Run the animation - do you see the difficulty ?
Do you see a problem?
What questions could/would you ask your students based on this applet?
Adapted from an applet by John Golden