Using the provided URL, the applet provides a population growth simulation for two scenarios: exponential and logistic. This worksheet presents an orderly way to explore both, taking into account pros and cons for each. May be used for solely exponential modeling, though the logistic modeling helps students judge between different types of mathematical modeling. Worksheet includes a total of 6 "Experiments" to run with the simulation. Can be done in a computer lab in one hour. May be used effectively as a home assignment. Two questions require writing, discriminating and justifying the different models.