The document discusses how games and simulations can be used for learning. It summarizes research showing that avatars can act as models that influence behavior and perceptions. Simulations are most effective when embedded in a broader instructional program, and they have been shown to increase confidence, declarative knowledge, procedural knowledge, and retention compared to traditional instruction alone. Specifically, simulations led to a 20% increase in confidence, an 11% increase in declarative knowledge, a 14% increase in procedural knowledge, and a 9% increase in retention.