Social Development
Social Development Ages 25

Parallel to Cooperative Play

Outcome 2, Children are connected with their world

Section 1

Overview

Milestone. Child progresses from playing beside others to playing with others, sharing roles, materials and a common goal.

Why it matters. The play development trajectory is a proxy for social-cognitive growth. Children who remain in parallel play beyond age 4 may need targeted support to develop cooperative social skills.

Section 2

Age-banded milestones

18–24 months
  • Plays alongside peers with similar toys
  • Watches other children with interest
  • Occasional brief sharing with adult prompt
2–3 years
  • Parallel play is comfortable and sustained
  • Begins simple associative play (same activity, minimal coordination)
  • Uses names of familiar peers
3–4 years
  • Enters cooperative play with 1–2 peers
  • Assigns simple roles in pretend play
  • Shares materials with reminders
4–5 years
  • Sustains cooperative play in small groups
  • Negotiates rules and roles
  • Resolves simple conflicts with adult scaffolding
Section 3

Red flags, when to seek support

If you notice one or more of these patterns, talk with a GP, child health nurse, speech pathologist or occupational therapist for further assessment.

  • No interest in other children by age 3
  • Cannot tolerate a peer nearby without distress by age 3
  • No pretend play emerging by age 3
  • Persistent aggression that prevents any shared play
Section 4

Strategies & activities

Activities

  • Sensory bins shared between two children with educator narration
  • Simple role play setups: shop, kitchen, garage, doctor
  • Co-construction activities: building a shared tower, road or train track
  • Small group art projects with one shared outcome
  • Structured play groups with facilitated adult support

Materials

  • Shared props for role play (food, tools, dressing-up items)
  • Construction sets that require collaboration (large blocks, train tracks)
  • Games requiring co-operation (not competition)
  • Role-play spaces that accommodate 2–3 children naturally

Speech pathologist

  • Building social communication scripts for play entry: “Can I play?”
  • Teaching negotiation and compromise language
  • Supporting narrative and role-play language development

Occupational therapist

  • Sensory regulation to support proximity to other children
  • Fine motor and motor planning for shared construction play
  • Grading social complexity for children with tactile sensitivities

Educator role

  • Narrate and facilitate play: “Liam is building a road, could your car use it?”
  • Coach play entry: model and rehearse “Can I play?” with the child
  • Step in early if play begins to break down, don’t wait for conflict
  • Create environments that naturally invite paired interaction

Family support

  • Arrange regular play dates with 1–2 familiar children initially
  • Facilitate play rather than leaving children to manage independently
  • Debrief play experiences positively: “I saw you share the truck, great!”
  • Reduce screen-based solo activities to increase social play opportunities

Signs of progress

  • 1Chooses to play near specific peers consistently
  • 2Accepts a peer joining their play without withdrawing
  • 3Uses words to enter play: “Can I play?”, “Let’s do this together”
  • 4Maintains cooperative play for 5+ minutes with one peer
  • 5Negotiates roles or materials between children
Section 5

Related focus areas

Section 6 · Resource

Take parallel to cooperative play further

Download our practitioner-ready summary, milestones, red flags and evidence-based strategies you can share with families and educators today.