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This is a great activity to show real life connections with exponential functions.
Everyone says they want to be a millionaire, but few students understand the math behind what it would take to actually save a million dollars. This activity lets students see how saving a little money every month for a long period of time will pay off in the long run.
Students will learn how to use the financial calculator that comes pre-installed on TI-83 and TI-84 calculators. With the advanced capabilities of the financial calculator students can figure out how much money they will save (including interest) if they invest a certain amount of money every month, or every year. This activity lets them see the real life applications of interest, and exponential functions. You won't have to answer the question of "When will we ever use this" after this lesson is complete.