Which Piagetian stage is described as knowledge limited to sensory perceptions and motor activities?

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This describes the sensorimotor stage, where early knowledge is grounded in what a child can directly see, touch, or do. In this period, thinking is tied to concrete actions and sensory experiences rather than mental representations or symbols. Infants learn by exploring through movement, reflexes, and imitation, gradually coordinating actions into more intentional schemes. A key development later in this stage is object permanence—the realization that objects continue to exist even when not visible—which marks the shift toward more complex mental representations. As children move beyond this stage, thinking becomes increasingly symbolic and capable of internal manipulation, which is not yet present in the sensorimotor period.