Final answer:
Jean Piaget was a psychologist who believed children learn best by 'doing' and in collaboration with teachers. He emphasized the importance of practical activities in learning. His theory of cognitive development explains how our thinking and reasoning abilities develop through specific stages.
Step-by-step explanation:
Jean Piaget (1896-1980) was a psychologist who specialized in child development and believed children learn best by 'doing' and in collaboration with teachers. He emphasized the importance of practical activities in the learning process, such as those children use in their home life. Piaget's theory of cognitive development holds that our cognitive abilities develop through specific stages, with a distinct shift in how we think and reason as we progress to a new stage.