Starting childcare, or simply thinking about your child’s development, often comes with a lot of questions. What should my child be doing at this age? Are they on track? What comes next? These are the questions almost every parent asks, and they’re exactly the right ones.
Understanding developmental milestones gives you a clearer picture of the early years - what’s happening, why it matters, and how the experiences children have now build the skills they’ll rely on for the rest of their lives. This guide covers the key stages from birth to five, across four areas of development: physical, language, social-emotional, and cognitive.
This is broad, informational guidance, not a diagnostic tool. Children develop at different rates and in different sequences, and a wide range of development is completely normal. If you have a specific concern about your child, your GP or a child health professional is the right place to start.
What Milestones Are and How to Use Them
Developmental milestones are research-based indicators of what most children are doing within a given age range. They’re used by educators and health professionals as a common framework for tracking growth and identifying where additional support might be helpful.
They’re most useful when treated as a broad reference point rather than a strict checklist. A child might reach some milestones early and others later, across different areas of development and at different times. That variation is expected and normal.
At Kids Academy, our educators are trained to observe each child’s development closely and to tailor their support accordingly. Our structured programs are designed to build skills progressively, meeting children where they are and stretching them toward the next stage of growth.
Birth to 12 Months: Building the Basics
The first twelve months establish the physical, cognitive, and social foundations everything else will build on. It’s a period of extraordinary change, from a newborn with reflexes to a baby who moves, communicates, and actively engages with the world around them.
- Physical development: Most babies develop from limited head control at birth to sitting independently, rolling, reaching, and grasping. By 9-12 months, many are crawling, pulling themselves to stand, and beginning to move along furniture.
- Language development: Communication starts from day one, through cries, facial expressions, and quickly, coos and babble. By 6 months most babies are responding to their name. By 12 months, many are using a first word or two and communicating with gestures like pointing and waving.
- Social and emotional development: Secure attachment is the defining developmental task of the first year. Babies learn to recognise familiar faces and voices, and by 6-8 months often display stranger anxiety, a sign that healthy bonds have formed.
- Cognitive development: Object permanence - the understanding that objects continue to exist when out of sight - typically develops between 8 and 12 months. It’s a foundational cognitive concept, and you’ll see it emerge when your baby begins searching for things that are hidden.
How our educators support this stage
In our infant rooms, our educators prioritise secure, consistent relationships as the basis for all early learning. Sensory experiences, responsive communication, and carefully structured routines help babies feel safe, stimulated, and ready to grow.
1 to 2 Years: Moving, Talking, and Testing Boundaries
The second year brings a surge of energy in every direction - physical, verbal, and social. Children are on the move, finding their voice, and beginning to assert a very clear sense of what they want.
- Physical development: First steps typically arrive between 9 and 15 months. By 18-24 months, most children are walking confidently, starting to run, and exploring climbing. Fine motor development is progressing too - toddlers are stacking, filling containers, and beginning to use their hands with more precision and purpose.
- Language development: Vocabulary grows quickly through this period. Many children use 10-20 words by 18 months and start combining two words - “more food,” “mummy go” - by around 24 months. It’s worth noting that comprehension typically runs well ahead of expression at this stage.
- Social and emotional development: Independence is the theme of the second year. Children are developing a strong sense of self, which brings big emotions and moments of real determination. This behaviour is developmentally appropriate - children are learning to navigate the world on their own terms, which is exactly what they should be doing.
- Cognitive development: Symbolic play begins to appear - a block becomes a truck, a cup becomes a hat. This early imaginative thinking is a meaningful cognitive milestone, reflecting the brain’s growing capacity for abstract representation.
How our educators support this stage
Our toddler programs at Kids Academy are structured to support growing independence within clear, consistent boundaries. Educators actively build language throughout the day - narrating, labelling, and extending what children say - while predictable routines support the emotional regulation children need to engage with learning.
2 to 3 Years: Language Takes Off and Social Skills Begin to Form
The third year is when language development accelerates noticeably, and children begin to engage with others in more intentional ways. It’s also when the foundations of early literacy and numeracy start to take shape.
- Physical development: By age 3, most children can run, jump, kick a ball, and handle stairs with confidence. Fine motor control is developing - children are holding pencils, manipulating objects with precision, and beginning to manage simple fastenings.
- Language development: Short phrases become sentences between ages 2 and 3. By their third birthday, most children are speaking in 3-4 word sentences that people outside the family can generally understand. Vocabulary can grow to several hundred words across this period.
- Social and emotional development: Parallel play - playing beside other children rather than directly with them - is typical at age 2 and gradually shifts toward more cooperative interaction as children approach 3. Sharing and turn-taking are still developing skills at this stage and require patient, consistent support.
- Cognitive development: Children are beginning to understand sequences, categories, and simple time concepts. The “why” questions arrive in force, and that relentless questioning is a sign of active, healthy cognitive development that should be encouraged, not redirected.
How our educators support this stage
Our 2-3 year programs are intentionally language-rich, with structured group experiences designed to build early social skills alongside cognitive development. Educators support emotional literacy, helping children name what they’re feeling and begin to develop strategies for managing it.
3 to 5 Years: School Readiness Starts Here
The preschool years are where the skills, habits, and dispositions children will carry into school begin to consolidate. This is a critical window, not for drilling academic content, but for building the structured thinking, communication, and social skills that underpin long-term learning success.
- Physical development: By 4-5, most children are running, hopping, and skipping with coordination. Fine motor skills are becoming precise enough for drawing recognisable shapes, beginning to write their name, and using scissors with guidance.
- Language development: Most children in this range speak in full sentences, retell stories with structure and sequence, and have a vocabulary exceeding 1,000 words. They’re developing an understanding of narrative, conversational rules, and, increasingly, how language works as a system.
- Social and emotional development: Friendships are forming and becoming important. Children are developing genuine empathy, learning to negotiate and compromise in play, and building a more defined sense of who they are. These are not soft skills, they are the social architecture of future learning and collaboration.
- Cognitive development: Early literacy and numeracy foundations are actively building - letter recognition, counting, sorting, patterning, and basic problem-solving. Play is increasingly rule-based and logical. Children are applying cause-and-effect thinking and beginning to approach challenges with real persistence.
How our educators support this stage
At Kids Academy, our preschool and kindergarten programs are explicitly focused on school readiness, building the skills, knowledge, and confidence children need to transition successfully into formal education. We work within the Early Years Learning Framework (EYLF) and apply a structured, intentional approach to curriculum planning that ensures every child is genuinely prepared for what comes next.
Development Is a Range, Not a Race
Milestones describe what most children are doing within an age range, not what every child must be doing by a specific date. A wide spread of development is normal, and children often progress unevenly across different domains.
If something in this guide has raised a question about your child, your Kids Academy educator is a great starting point. They observe your child daily and can offer meaningful, informed perspective. Your GP and child health nurse are also well placed to help.
The goal of understanding milestones isn’t to accelerate development, it’s to support it. Knowing what to expect helps you notice what’s happening, engage more intentionally, and ask better questions. That’s exactly what good early education looks like, whether it’s happening at home or in the centre.
See How Kids Academy Supports Every Stage
Our structured programs are designed to build skills progressively from birth through to school entry. Explore our approach to early learning or find your nearest Kids Academy centre to book a tour.