Child learns from interaction with environment- through their senses (sensori) and by moving around their environment (motor)
Object permanence
At the start of the sensory motor stage if a toy is hidden from a baby, they will not search for it. Because the baby lacks object permanence.
Object permanence is when an infant knows an object or person exists even if they can’t be seen.
It takes time for a baby to develop object permanence, by the end of the sensori- motor stage the child would have developed object permanence if a toy is hidden from their view they will actively look for it.