learning is acquiring knowledge & skills that leads to relatively permanent long term change in person's knowledge,attitudes & behavior. it's an active ,self-aware process that starts from birth & continue till death.

behaviorism- rewards & punishments
cognitivism-learning through classifications
humanism-learning due to need, these needs may be artificially created. ex-to get promotions,to pass exams
constructivism-get together and build up knowladge