By the time our child is around 18 months, they may be able to fit some simple shapes into the puzzle base. • The young toddler can start with simple three-to-five-piece puzzles with large knobs. Even if the child is unable to put the pieces back, they are refining their fine-motor development. In this case, I would step in to model putting the pieces back so they can repeat the process of taking them out. • From about 18 months, the child can move on to nine-piece puzzles with smaller knobs or no knobs. •
