Knowles listed five basic assumptions to describe adult learners: have aided in developing how adult's learner conceptualize content in their learning environment, the relevancy, and application of content. Adult learners don't just want to obtain content, they often ask "why" which can lead to an instructor researching information and providing thorough explanations to lifelong learners. Additionally, Rogers mention of self-directed learning identifies the role andragogy plays in the student directed learning for adult learners.