This document discusses exponents with values of zero and negative numbers. It states that anything to the zero power is equal to 1. For negative exponents, if the exponent is in the numerator, the base and exponent move to the denominator, and vice versa if the exponent is in the denominator. Examples are provided to demonstrate simplifying expressions using these rules. The document also includes practice problems for students to work on in pairs related to zero and negative exponents.