Self-directed learning allows learners to take primary responsibility for planning, carrying out, and evaluating their own learning experiences. The goal of self-directed learning is to enhance one's ability to learn, promote transformational learning, and foster emancipatory learning. Self-directed learning models include linear models which view it as a process, interactive models which incorporate environmental and personal factors, and instructional models which combine self-directed learning with traditional classroom instruction. Moving from a pedagogical to an andragogical approach acknowledges that adults should be responsible for their own learning decisions.