This document outlines Mark Richardson's experience with and advocacy for Challenge Based Learning (CBL) and the use of iPads in CBL classrooms. It provides an overview of CBL, examples of how iPads can enhance CBL projects, and recommendations for specific apps to support each stage of the CBL process from launching challenges to sharing solutions. The document also shares resources for teaching CBL with iPads such as existing CBL units, tutorials for apps, and links to iTunes U courses about CBL.