Navigating developmental stages in social-emotional growth

From the first smiles of infancy to the complex identity formation of adolescence, understand how key milestones and responsive caregiving shape a child's lifelong well-being. Actively working with your child creates lasting emotional foundations.

Key developmental stages

Social and emotional development unfolds across unique phases, each building on the prior one. Explore how children grow from early relational bonds to independent decision-making.

Infancy (birth to 2 years)

Focuses on forming secure attachments, seeking comfort from trusted caregivers, showing distinct emotions, and using simple social cues like peekaboo and babbling to communicate needs.

Early childhood (ages 3–5)

Marked by growing emotional vocabulary, beginning to share and take turns, expanding imaginative play, and learning cooperative problem-solving through guided adult interaction.

Adolescence (ages 12–18)

Involves navigating complex peer dynamics, establishing personal identity, cultivating deep empathy, and managing intense emotional shifts with developing autonomy.

Supporting growth through intentional practice

Developmental milestones thrive when educators and families use evidence-based activities to model coping strategies, self-reflection, and compassionate communication every single day.

Infancy Stage

Social and Emotional Milestones

During infancy, children begin developing the foundations of attachment, emotional communication, and regulation.

Examples of social-emotional development include:

  • Developing a preference for familiar caregivers.
  • Smiling and responding to social interaction.
  • Using facial expressions, sounds, gestures, and eventually words to communicate needs.
  • Seeking comfort from trusted adults.
  • Showing a range of emotions, including excitement, frustration, fear, and pleasure.
  • Beginning to recognize familiar people and respond differently to unfamiliar people.
  • Increasingly participating in simple social games such as peekaboo.
  • Beginning to use adult support to calm after becoming upset.

Developmental milestones are observed across areas such as how children play, learn, speak, act, and interact with others. 

Two Classroom SEL Strategies

1. Responsive Relationship Routines

Teachers and caregivers can create predictable routines for greeting, feeding, diapering, transitions, and departures.

Use warm facial expressions, eye contact, gentle language, and consistent responses.

Try saying:

"You are upset. I'm here with you. Let's take a breath and get comfortable."

The goal is not to expect infants to regulate independently. Adults provide co-regulation by helping infants gradually learn what safety and emotional regulation feel like.

2. Emotion-Focused Songs and Books

Use simple songs, fingerplays, mirrors, and picture books to introduce emotions.

For example:

  • "Where are your eyes?"
  • "Can you show me a happy face?"
  • "The baby is crying. What might the baby need?"

Teachers can label emotions without expecting infants to verbally identify them.

Early Childhood Stage

Social and Emotional Milestones

During early childhood, children become increasingly capable of identifying emotions, interacting with peers, and beginning to control their impulses.

Examples include:

  • Naming some emotions in themselves and others.
  • Showing increasing independence.
  • Engaging in cooperative and pretend play.
  • Beginning to share, take turns, and follow classroom expectations.
  • Showing empathy or concern when another child is upset.
  • Using language to communicate wants and needs.
  • Beginning to solve simple peer conflicts with adult support.
  • Waiting for short periods and beginning to delay gratification.
  • Developing a growing understanding that other people may have different feelings and perspectives.

Two Classroom SEL Strategies

1. Feelings Check-In

Create a daily feelings board using pictures, colors, or emotion words.

Ask students:

"How are you feeling today?"

Students can point to an emotion, place their name beside a picture, or verbally identify their feeling.

Follow up with:

"What could help you feel ready to learn?"

This activity develops self-awareness and gives teachers an opportunity to notice patterns in students' emotional needs.

2. Puppet Problem-Solving

Use puppets or stuffed animals to act out common classroom problems.

For example:

"Sam wants the red truck, but Maya is already using it. What could Sam do?"

Invite students to generate possible solutions.

Students might suggest:

  • Ask politely.
  • Choose another toy.
  • Wait for a turn.
  • Play together.
  • Ask an adult for help.

This activity builds social awareness, relationship skills, communication, and responsible decision-making.

Adolescence

Social and Emotional Milestones

Adolescence is a period of substantial social, emotional, cognitive, and identity development.

Examples include:

  • Developing a stronger sense of personal identity and values.
  • Becoming increasingly aware of how others perceive them.
  • Seeking greater independence from adults.
  • Developing more complex friendships and peer relationships.
  • Becoming increasingly capable of understanding different perspectives.
  • Developing greater capacity for empathy.
  • Learning to manage stronger and more complex emotions.
  • Increasingly considering long-term consequences when making decisions.
  • Setting personal, academic, and career goals.
  • Learning to navigate peer pressure and social expectations.
  • Developing more sophisticated strategies for coping with stress.

Adolescent development is not simply a process of "outgrowing" childhood. Young people continue developing their capacity for self-management, relationships, decision-making, and identity.

Two Classroom SEL Strategies

1. Scenario-Based Decision Making

Present students with realistic situations involving school, friendships, social media, conflict, or academic stress.

Ask students to identify:

  1. What is happening?
  2. What emotions might be involved?
  3. What are the possible choices?
  4. What could happen after each choice?
  5. Which choice best supports the student's goals and well-being?

This directly supports responsible decision-making and self-management.

2. Reflection Journals or Exit Tickets

Give students brief opportunities to reflect on their emotions, relationships, challenges, and successes.

Prompts might include:

  • "What was one challenge you handled well today?"
  • "What emotion affected your learning today?"
  • "What strategy helped you manage stress?"
  • "What is one goal you are working toward?"
  • "What is one thing you could do differently tomorrow?"

Students should have choices about whether reflections are private, shared with the teacher, or discussed in a group.