Two decades of Teaching Games for Understanding : looking at the past, present, and future / Linda L. Griffin and Kevin Patton -- Emphasizing student engagement in the construction of game performance / Jean François Richard and Nathalie Wallian -- Teaching Games for Understanding as a curriculum model / Joy I. Butler and Barbara J. McCahan -- Teaching and learning games at the elementary level / Steve Mitchell -- Teaching and learning games at the secondary level / Adrian P. Turner -- Introducing the Teaching Games for Understanding model in teacher education programs / Kath Howarth -- Implementing Teaching Games for Understanding : stories of change / Steven Tan -- The role of assessment in Teaching Games for Understanding / Judith L. Oslin -- Integrating tactical games and sport education models / Connie S. Collier -- Integrating cooperative learning and tactical games models / Ben Dyson -- Making sense of chaos : Australian coaches talk about game sense / Richard Light -- Implications of models-based instruction for research on teaching : a focus on Teaching Games for Understanding / Michael W. Metzler -- Teaching Games for Understanding and the delights of human activity / R. Scott Kretchmar -- Future prospects for Teaching Games for Understanding / David Kirk.