Give students meaningful practice solving problems involving start time, end time, and duration. **Topics Included:** • Thank You • Activity duration elapsed time hours 17 • Activity duration elapsed time hours 2 • Activity duration elapsed time hours 27 • Activity duration elapsed time hours 32 • Activity duration elapsed time hours 37 • Activity duration elapsed time hours 47 • Activity duration elapsed time hours 7 • Clock progression elapsed time minutes 28 • Clock progression elapsed time