This document provides an overview and guide to project-based learning (PBL). It defines PBL, discusses when to use it, conditions that support it, and research supporting its effectiveness. PBL engages students in learning knowledge and skills by working for an extended period of time to investigate and respond to an authentic, engaging and complex question, problem, or challenge. It is most effective when students have voice and choice, work with others, and produce a public product or presentation. Conditions that support PBL include a safe classroom environment, personalized learning, collaborative work, and involvement of community partners. Research shows PBL can boost achievement and help students develop skills like problem-solving that transfer beyond school.