Describe some criticisms against Piaget's theory of cognitive development.

1. Underestimated the abilities of young children and overestimated the abilities of older students. 2. Failed to recognise that students' thinking depends more on their background knowledge and experiences than Piaget suggested. 3. Piaget's stages don't adequately describe development for a number of tasks. 4. Piaget's theory doesn't adequately consider the role of culture in development. 5. Piaget assumes that individuals are readily motivated and industrial individuals to reestablish equilibrium which is not often the case.