1. Expert knowledge: The character will possess of cognitive model of effective gardening and cooking that will allow it to support the activities of the Virtual Sprouts game. This will enable the agent to explain how to create and maintain a healthy garden, harvest and cook items from the garden, and provide explanations of the health benefits of eating organically prepared foods. The expert model will also form the basis for assessment of learner activities to give them credit when they take a correct action (e.g., water at the correct time and amount) and to know when they've made a mistake (e.g., planted two seeds too close to one another). These assessments will feed into the pedagogical decision system.