二、发展理论: (一)皮亚杰的认知结构理论 1、感知运动阶段(0~2)岁 Sensorimotor stage 2、前运算阶段(2~7)岁 Per-operational stage 3、具体运算阶段(7~12)岁 Concrete operational stage 4、形式运算阶段(12~15)岁 Formal operational stage二、发展理论: (一)皮亚杰的认知结构理论 1、感知运动阶段( 0 ~ 2 )岁 Sensorimotor stage 2、前运算阶段 ( 2 ~ 7 ) 岁 Per-operational stage 3、具体运算阶段(7 ~ 12 )岁 Concrete operational stage 4、形式运算阶段(12 ~15)岁 Formal operational stage