Answer: Piaget
Step-by-step explanation:
Jean Piaget is the psychologist that stated the cognitive theory of child development.He described about the phases and stages a child tends to pass as he/she grows up.
Motor behavior in a child is defined as learning about the motor skills by development of body ,mind and muscles. A child performs physical activities and control it through constant practice and learning.Example- running, crawling etc.
According to Jean Piaget, motor behavior impart knowledge to a child to understand a process and activity.Child senses the action performed by him/her and thus learns about it.