Growth and decay functions can be used in real-world situations to model population growth, growth of cancerous cells in the body, the amount of money in a bank based on principal and interest, the number of cell phones in circulation in the United States, etc. This hands on activity allows students to experiment with M&M's to model their own growth and decay functions. The goal of this activity is for students to work hands-on with m&m’s to create graphs of exponential growth and decay, and create functions that model their data. The objective for this lesson is, students will understand that exponential growth and decay models can be used to portray cancerous cells in the body, population growth, the amount of money in a bank based on principal and interest and many more real-world situations. Allowing students to work hands on with M&M's to model how exponential growth and decay works will make for a more meaningful learning experience.