While a stopped clock is right twice a day, a fast or slow clock confuses people for weeks. Scholars observe a clock running slow and must correct it before observing a clock running fast and working it backward. Finally, a multi-step problem relating a clock displaying an unbelievable time requires applying a new problem-solving strategy.
- Provide hands-on clocks for those who struggle with the concept
- Set up a time for pupils to teach how they solved these problems to younger students learning to tell time
- Relies on prior knowledge of telling time on analog clocks
- Includes an answer key
- Works well in traditional or flipped classes