Getting to Know the Project


Welcome to the Selling Geometry Project. The project will require approximately five weeks to complete and will address the key Common Core State Standards (CCSS) for geometry in the following clusters:

  • Experiment with transformations in the plane.
  • Understand congruence in terms of rigid motions.
  • Prove geometric theorems.
  • Make geometric constructions.


The Selling Geometry Project is designed to help you learn and appreciate geometry by discussing its history and foundation, understanding its fundamental concepts and figures, and learning basic methods of transformations. You’ll learn about basic shapes and how to manipulate them, as well as something about the founder of geometry, Euclid, who lived in the third century BC, but desires to honor his mentor, Plato, who lived in the fifth century BC.

Your goal is to create and defend a presentation, in a web page or other format, that explains the history, concepts, and importance of geometry. But here’s the harder problem: You have to do this in the form of a marketing message aimed at teens. You have to learn the why behind geometry, and how it applies to your life in the modern world. Can you convince other teens to study, or even love, geometry? That’s the challenge!

Project-based learning (PBL) is designed to focus you on solving an open-ended problem and providing a solution to the problem through working in teams. So you’ll be working with other students in small design teams to attack this challenge. Learning to work well in collaborative teams is a necessity in today’s work world, so you’ll get some valuable lessons in teamwork. Also, the challenge will help you learn to solve problems. That’s an important goal of the new CCSS. You’ll learn the fundamentals of geometry, as defined by Unit 1 Traditional Geometry or Unit 5 Integrated Pathways standards, but you’ll also learn to think more deeply about geometry.