Cameron (2011) stated that Piaget believed that cognitive development takes place as a result of assimilation and accommodation, meaning that he viewed intellectual growth as a process of adaptation to the world. Assimilation occurs when action takes place with no change to the child. The child uses an existing schema to deal with a new object or situation. Accommodation is the child adjusting to the environment. The existing schema does not work, therefore needs to be changed to deal with a new object or situation.