This worksheet is written for a lesson on ELAPSED TIME. It was originally written to coincide with a Promethean lesson which can be found at this link: https://www.teacherspayteachers.com/Product/Negative-Numbers-Negative-Answers-1784631
If you purchase the above Promethean lesson, the worksheet is included in the cost.
Along with the lesson, this worksheet includes a homework question and an area for pre-class question.
The math involved is basic and was geared toward a special education class. However this lesson would be still useful to elementary or middle school level general education classes.
This lesson is written in accordance with state standards and objectives. It is intended to capture the attention and interest of students of all abilities.