End of the Year Math Logic Puzzles: Adrenaline Math Race. Word Problems - Distance, Rate, and Time activity. Use this activity to engage your students with distance, rate, and time problems. Teachers and students can think about the tasks in this activity as unit rate problems, and solve them using the d = rt formula, or proportional reasoning.In this activity, we have distance in meters or kilometers and time in minutes and hours, but the file is editable, so you can change everything. One