This is a Unit of worksheets/handouts that can be used as notes (with some additional practice/homework sheets included). The unit is most appropriate for an Algebra 2 level course. The unit begins with a quick review of basic exponent rules and then focuses on negative and fractional exponents. The solving of equations involving exponents and exponential equations are included. Students then graph exponential functions and discuss some of their features such as the function's domain and range and horizontal asymptote. Finally, students look at models of exponential growth and decay, including a brief introduction to the number e and continuous growth. A mixed review is included which can be used as a classwork or group assignment or as review for a unit exam.