When you browse an age range, Tumblon shows you all the milestones that are active during part or all of that range. For this reason, many milestones that span age ranges (for example, between 2 and 3 years) will appear in both the year 2 view, and in the years 3-4 view.

Milestones are significant events or activities you can expect from your child around each age range.

Wondering what to do with your child when the TV is off? Check out our activities to find fun, simple ways to engage your child at each stage of development.

How do you find books that inspire your children and capture their imaginations? Check out our book list to find the book that is right for your child’s age, strengths and interests.

What kinds of toys stimulate your child’s development? Check out our toys to find the best ones for your child’s stage and strengths.

How do you help a child cultivate a love for great music? Check out our music choices ranging from classic to toddler.

How does parenting change at each stage of development? Browse our articles on developmentally appropriate parenting to learn how to adjust with your child’s changes.

How do you know what baby gear is essential, and what is going to sit in the closet? Check out our gear to be informed before you buy.

What websites help children build developmentally appropriate skills? Check out our top picks for children and their parents.

A developmental milestone is an achievement your child will probably reach within a certain age range.

Age ranges are an approximation based on research of when certain milestones or activities might be expected to occur.

Developmental areas refer to specific distinct areas of development.