Developmental Milestones
Explore key developmental milestones for each age, based on CDC, WHO, and Montessori frameworks.
1 Month
1 Month
2 Months
2 Months
3 Months
3 Months
4 Months
4 Months
5 Months
5 Months
6 Months
6 Months
7 Months
7 Months
8 Months
8 Months
9 Months
9 Months
10 Months
10 Months
11 Months
11 Months
12 Months
12 Months
1-Year-Olds
1-Year-Olds
2-Year-Olds
2-Year-Olds
3-Year-Olds
3-Year-Olds
4-Year-Olds
4-Year-Olds
5-Year-Olds
5-Year-Olds
6-Year-Olds
6-Year-Olds
7-Year-Olds
7-Year-Olds
8-Year-Olds
8-Year-Olds
9-Year-Olds
9-Year-Olds
10-Year-Olds
10-Year-Olds
11-Year-Olds
11-Year-Olds
12-Year-Olds
12-Year-Olds
About Developmental Milestones
Developmental milestones are skills and behaviors that most children display by a certain age. Week to Week synthesizes guidance from trusted frameworks including the CDC (Centers for Disease Control and Prevention), WHO (World Health Organization), and Montessori education philosophy to help you understand your child's development and find activities that support their growth.
Remember: every child develops at their own pace. These milestones are guidelines, not strict requirements. If you have concerns about your child's development, consult with your pediatrician.