What is an exit ticket for this problem: These are usually 1-5 problems that can be done in in 5-10 minutes to determine an individual's understanding of your lesson's objective at the end of class.

Problem:

A class is planning to make a vegetable garden for science class. The size of the garden will be 72 square feet. If the shape of the garden is a rectangle, how many different rectangle shapes can the class make? Each side of the garden will be whole number of feet.