Question 1
In the first of Piaget's sub-stages of cognitive development, infants:
◦ solve problems with only primitive images.
◦ engage in circular reactions.
◦ begin to gain control over their reflexes.
◦ engage in goal-directed motor action.
Question 2
According to Piaget, infants begin to understand cause and effect:
◦ between 18 and 24 months.
◦ shortly after birth.
◦ between 2 and 6 months.
◦ between about 8 and 12 months.