Behaviourism: Behaviourism assumes that a learner is fundamentally flaccid, replying to environmental incentives. Behaviour theorists states learning as nothing more than the attainment of new behaviour. In this theory Language acquisition is the result of stimulus-response activities where factors that facilitate are imitation, replication, reward and reinforcement. Cognitivism Cognitivists are related with ‘cognition’ and how it marks individual ‘learning’. Cognitive Learning Theory suggests that the different methods regarding learning can be elucidated by scrutinising the mental progressions first. Unsuccessful cognitive processes provide effects in learning complications that can be perceived anytime during the period of an individual. Piaget’s theory Piaget’s theory of cognitive development contains of four stages of intellectual development. The first stage is the sensory motor stage ( birth-2 yrs.), in this stage child does not know the physical object in existence when out of stage. Second stage is called the preoperational stage (age2-7), no abstract conceptualisation is possible where it needs concrete physical situation. In the stage is concrete operational stage (age7-11), starts to conceptualize with experience that accumulates. The fourth stage is formal operation (11-15), cognitive structures resembles like adults and includes conceptual reasoning. Constructivism Constructivism as a prototype posits that learning is an active constructive process.