Behaviourism is evidently still relevant in the modern school (McQuillan 1998), even if it is a somewhat outdated theory. Schools still have their sanctions policies based around Operant Conditioning and negative reinforcement with various levels of warnings and detentions in place for negative behaviour. This will remain effective for as long as policy makers allow these sanctions to be used. However, Skinner's belief that we are all blank slates and what goes on inside our black boxes (Child 1997, pp.119-121) when we learn is not important, is not relevant anymore.(Child 1997, pp.113-121) The students I have worked with and taught are all very unique in their personalities and show completely different ways of learning. To say that the learning processes they go through are only related to external stimulus and their response to that stimulus does not correlate with what has been observed in the classroom.Constructivist Theory has played a big part in the current educational environment in schools. Driver and Easley introduced constructivism as it is known now to the science community in 1978. (Solomon 1994, p.3)They stated what was previously an inaccessible theory for science, accessible to the scientific educational community. The 14-19 classroom allows us to look at how Piaget's Theory of Cognitive Development is applied.