Explaining Fractions: A Fun Pizza Party! Have you ever tried to explain fractions to a first to third grader? It can be a little tricky, but with the right tools and some creativity, you can make it fun and easy! One way to teach fractions is by using everyday objects, and what better object than pizza? In this article, we’ll walk you through how to use pizza to teach fractions like 1/2 or 1/4. So grab a slice and let’s get started on this pizza party!