24 to 30 Months
Putting the pieces together. Your toddler now has the cognitive skills to assemble a basic three-piece puzzle and sort objects by size or another simple category. All of these little victories help improve fine motor skills as he uses his fingers. The activities also boost his understanding of spatial relations and encourage patience, trial-and-error, and focus.
“Parenting Guide to Your Toddler” by Paula Spencer, Ballantine Books 2000.
“Caring for Your Baby and Young Child, Birth to Age 5 (5th Ed)” by the American Academy of Pediatrics.