## Prepare a Presentation

## Work Time

# Prepare a Presentation

Prepare a presentation about your method for solving the problem.

- Explain what you did differently to find the time compared with finding the distance.
- Use your work to support your explanation.

# Challenge Problem

At the 1996 Olympics, Michael Duane Johnson set world records for the 200-meter and 400-meter races. He ran the 200-meter race in 19.32 seconds and the 400-meter race in 43.49 seconds.

- Calculate his speed for each race using a rate.
- In which race did he have the fastest speed? Justify your thinking.