This document discusses strategies for engaging students in inquiry through project-based learning (PBL) and problem-based learning (PBL). It begins by distinguishing different types of authentic learning approaches before focusing on PBL and PBL. The key principles of PBL are described, including having students take responsibility for their own learning through open-ended problems. Effective PBL uses ill-structured problems, integrates multiple disciplines, relies on collaboration, and has students apply their learning back to the problem. Examples of PBL units on math/environmental science and genetics/math are provided. Guidance is given on generating authentic problems and developing driving questions for projects. Attributes of successful PBL and factors influencing the success of inquiry approaches are