Developmental Milestones

To understand if an activity is developmentally appropriate, we need to understand the common developmental milestones for each age group.

Infants and young toddlers (0-2 years)

  • They depend on you for everything at first but become more independent as they age.
  • They need to always be in sight and/or hearing range to keep them safe.
  • They can’t regulate their own behavior yet, so you need to modify their environment to keep them safe.

Toddlers and preschoolers (2-5 years)

  • Become more independent.
  • Need a secure base to feel comfortable exploring their environment.
  • Still need a modified environment for safety.
  • Need to always be in sight and/or hearing range for safety.
  • Become more interested in playing with peers and doing more group activities in the high end of this age range.
  • Need lots of physical activity.

Early School Age (5-12 years)

  • Begin forming deeper peer relationships and friendships.
  • Want to go to friends' houses or have friends over.
  • Like to help (bake, work in yard, etc).
  • Need lots of physical activity.
  • Like to have some control, so giving choices between two options is great for this age range.
  • Extracurricular activities begin (sports, dance, etc.).
  • In the mid to upper age range of this group, unsupervised activities are likely (riding bikes around the neighborhood, etc.).
  • Very aware if they don’t fit in or are different from their peers.

Teenagers (13-17 years old)

  • During adolescence, normal behaviors include increased risk-taking, a desire to become increasingly independent, and the longing to have more responsibility.
  • Need more independence to make decisions about unsupervised activities.
  • Friendships and peer relationships are very important.
  • Very aware if they don’t fit in or are different from their peers.
  • Might try on different styles, groups of friends, or trends to see where they fit and feel comfortable.
  • Start having boyfriends or girlfriends. In the mid to upper age range of this group, teens want to start dating and driving and should be thinking about future goals.
  • Need to learn life skills.

For a more complete look at child development stages, read Understand Ages & Stages by ParentFurther

Up Next: Normalcy Matters