This is a graphic organizer for students to use when trying to find how much time has elapsed between two times. It can be laminated and used as a center practice activity.
To use this graphic organizer, first plug in the Start Time and End Time for the problem. Then think about the closest hour (O'Clock Time) after the start time and before the end time. You should have the top row of boxes filled in on the organizer. Next calculate the number of minutes in between the Start Time and O'clock t