One of the most challenging topics to understand in algebra is rate of change. This app helps students explore the effects of different rates of change on the classic race between the tortoise and the hare. Students can manipulate how many feet per second each racer travels, including a little nap time for the hare and then watch the race be animated. Students can also change perspectives between seeing the overall map of the race and watching the individual racers up close and see how the rates of change for each racer look in each context.