Child Development Stages by Age

Medically Reviewed

Medically reviewed

Evidence Based

Evidence based

Updated Date

Updated on Apr 14, 2025

As your child grows, every stage of their development comes with its own unique changes. By understanding these stages, parents can better support their child’s growth, catch any possible issues early, and provide the right care at the right time. Here's a simple guide to the common stages of child development based on age, along with what parents can expect and how they can help.

1. Infancy (0–1 year)

What’s happening:
Your baby is adjusting to life outside the womb. Growth is rapid—height and weight increase quickly.

Key milestones:

  • Rolling over, sitting, crawling, and eventually standing
  • Beginning to babble and respond to voices and facial expressions
  • Building emotional bonds with caregivers

What parents can do:

  • Provide a safe, loving, and consistent environment
  • Talk, smile, and play with your baby often to support language and emotional growth
  • Keep an eye on key milestones—talk to your doctor if you’re concerned about delays

2. Toddlerhood (1–3 years)

What’s happening:
Your child is curious about everything! Walking, talking, and independence begin to take off.

Key milestones:

  • Walking, running, climbing
  • Using simple words to express wants and needs
  • Showing strong independence (lots of “I do it!” moments)
  • Emotions are strong, but control is still developing

What parents can do:

  • Be patient and supportive as your child learns by doing
  • Set simple rules and boundaries for safety
  • Start encouraging basic self-care skills like washing hands and feeding themselves

3. Preschool Age (3–6 years)

What’s happening:
Your child’s imagination and social life are blooming. They love playing with others and asking questions.

Key milestones:

  • Speaking in full sentences and asking lots of questions
  • Imaginative play and storytelling
  • Starting to understand rules and right vs. wrong

What parents can do:

  • Play together and talk about feelings
  • Set up consistent daily routines (meals, naps, bedtime)
  • Teach sharing, taking turns, and teamwork

4. School Age (6–12 years)

What’s happening:
Kids start formal learning and develop a better understanding of themselves and others.

Key milestones:

  • Stronger focus and learning skills
  • Building friendships and caring more about others’ opinions
  • Developing self-esteem and responsibility

What parents can do:

  • Help manage schoolwork and emotional stress
  • Encourage hobbies, sports, and social time
  • Keep communication open to build trust

5. Early Adolescence (12–14 years)

What’s happening:
Puberty begins, emotions shift, and your child wants more independence. They may push boundaries.

Key milestones:

  • Fast physical growth and signs of puberty
  • Stronger emotions and possible mood swings
  • Seeking independence and peer approval

What parents can do:

  • Accept that they are growing up—adjust your expectations
  • Respect their privacy, but stay available for honest conversations
  • Help guide their values and self-understanding

Final Thoughts

Raising a child is like reading a book—each chapter is different and meaningful. You don’t have to be perfect. But when you understand what your child needs at different ages, parenting becomes more manageable.

With love, patience, and respectful guidance, your child can grow up healthy, confident, and happy—one step at a time.