The 11 Best Toys For 9-Month-Olds, According to Pediatricians and Parents

B. Toys Wooden Shape Sorter — Wonder Cube ($12)

A 9-month-old may not be able to put the shapes into this cube (that'll start around 18 months to 2 years), but Dr. Jonnalagadda says older infants can learn valuable lessons from a shape sorter.

"It works on fine motor skills of grasping and dropping," Dr. Jonnalagadda says. "When the shapes disappear into the bin, babies start to discover object permanence, which is a step of brain development that involves the concept that objects continue to exist even when you cannot see them . . . It's endless fun for a baby at this age and a great teaching tool."