Piaget referred to babies as “little scientists” when they are in the stage

Sensorimotor stage

Tertiary circular stage is the sub stage of sensorimotor development which happens between 12-18 months of age. At this stage, the infant passes through tertiary circular reactions of innovation and curiosity. These circular reactions are the designs in which a child deliberately investigates new possibilities with the objects and frequently involve in doing new things and searching new events.

answer; promote the individual as a "progressive being";