Acquisition learning is a theory developed by Stephen Krashen, which argues that there are two ways of developing language ability. Acquisition involves the subconscious acceptance of knowledge where information is stored in the brain through the use of communication.
Acquisition learning refers to the process used for developing native languages and often learned through absorption in one’s early years home environment. Opposingly, learning is the conscious acceptance of knowledge ‘about’ a language, such as the grammar or style. Krashen states that this is often the product of formal language instruction.