Home » Preschoolers » Preschoolers: 36 thru 47 months: 3 year oldsPreschoolers: 36 thru 47 months: 3 year oldsLearn about the importance of preschool development for three-year-olds 36 through 47 months.Preschool Development AlertsUnlock your preschooler’s potential with developmentally appropriate toys and activities for three-year-olds 36 through 47 monthsPreschool Toys 2025