These are scaffolded notes (Teacher & Student Versions) that are designed to guide student learning and note-taking during a lesson. They may be used to incorporate group work, individual exploration, and classroom discussion into a lesson. This particular set of notes uses the definition of Pi to help students discover the formula for circumference and area of a circle. It also uses Cavaleri's Principle to allow students to determine the volume for many common solids. The goal is for studen