This document discusses four learning domains: meaningful learning, discovery learning, generative learning, and constructivism. For meaningful learning, new knowledge is related to previous knowledge and learners make personal connections. Discovery learning is inquiry-based and learner-driven. Generative learning involves learners actively generating meaning through recall, integration, organization, and elaboration. Constructivism posits that learning involves learners constructing understanding from their experiences by connecting new information to prior knowledge. The key themes across these domains are that learners are active, set personal goals, make learning meaningful and relevant to their lives, and build new understanding on existing knowledge.