This is a straightforward lesson involving a problem situation and a pool. Students are given information about the specification about a pool and must come up with the piecewise function, create a table, and graph the information. This is a great way to represent the information in multiple modes and demonstrate a real world example of the importance of piecewise functions. This assignment could be done as a class for instruction or indpendently as a grade or practice. We have completed this lesson in our own classes with great success!