A Pre-Calculus textbook that focuses on mathematical techniques that are common issues for students in Calculus. This text contains many examples, ranging from

APEX Calculus is a calculus textbook written for traditional college/university calculus courses. It has the look and feel of the calculus book you likely use r

Active Calculus - single variable is a free, open-source calculus text that is designed to support an active learning approach in the standard first two semeste

Offering effective score-maximizing strategies, the Apex Learning Guides give vital review and test-taking advice for excelling at the AP subject exams. Each ed