What are Piaget’s six substages of infant and toddler cognitive development, and how do children think and solve problems during each of these periods? 2. How do other cognitive abilities, such as memory, attention, and play, promote the learning of infants and toddlers? 3.What are some variations in infant and toddler cognitive development that are affected by culture or poverty? 4. What are some causes of cognitive disabilities in infancy and toddlerhood, and what types of classroom adaptations address these?