Thank you for visiting our website! Core Matters is a family-run business dedicated to providing materials for a reasonable cost when you teach using the College Preparatory Mathematics (CPM) Common Core Curriculum. We also offer posters (including graph paper), and other items on our "A La Carte" menu. Please feel free to explore all of our pre-packaged offerings, our "A La Carte" menu, and do not hesitate to contact us with any special requests! We are here to make your life easier!