The document discusses game-based learning in early childhood education. It argues that play is important for early childhood development and that game-based learning can be an effective educational tool. Game-based learning uses digital games and virtual environments to engage students and help them learn while having fun. The document reviews research showing that game-based learning leads to better educational outcomes than traditional methods alone. It also examines the diffusion and adoption of educational games and virtual worlds in early childhood classrooms over time.