Piaget stages sortVersion en ligne Childhood Development & Learning par Shaner Adams 1 Sensorimotor 2 Preoperational 3 Concrete operational 4 Formal operations Birth to 2 object permanence (things still exist when out of sight) learn through senses provide toys with varied textures, colors, sounds roll a ball, stack blocks, simple instructions simple understanding of cause-effect 2-7 child will choose 5 pennies over 2 dimes or a tall skinny glass over a short fat one words and images represent objects egocentric- only the child's perspective exists imaginative play/ pretent can only focus on one variable at a time conservation: quantity remains the same even when arranged differently 7-11 classification of things in categories and hierarchies simultaneously can manipulate several variables simultaneously (decentration) can imagine others' points of view applies logic to relationships, processes and events 12+ extends logic to think strategically imagines hypothetical situations thinks in terms of societal issues, ethics, morals can perform algebraic operations can apply concepts in novel/ unrelated contexts