AbstractThere are many theories which has explained it in one or the other way. Mainly they are explained on the basis of behavioural, cognitive and constructivism. Behavioural theory emphasises mainly on the environmental stimulus for the learning process and ignores role of memory. On the other hand constructivist theory admits the environmental effect as well as the role of memory. Further it also explains ability of the memory to manipulate the learning experience at variable conditions.

Keywords: Learning, Behaviourism, Cognitivism, Constructivism, memory.