Understanding Autism Support Levels, Developmental Milestones & Transition Strategies

Understanding Developmental Milestones and Autism

Every child develops in their own unique way. While there are general developmental milestones that give us an idea of what to expect as children grow, no two children will follow exactly the same path.

Milestones can include things like a child’s first smile, taking their first steps, saying their first words, responding to their name, or beginning to interact with others. These milestones help parents, carers and professionals understand how a child is developing across areas such as communication, social interaction, emotional development, thinking and learning, and physical skills.

For autistic children, development may look a little different. Some milestones may be reached right on time, while others may take longer to develop or happen in a different order altogether. A child may also have areas where they show strong skills alongside areas where they need more support.

Understanding these differences is an important first step. Rather than focusing only on what a child may be finding difficult, it allows us to look at the whole child, recognise their strengths, and understand what support will help them participate and thrive.

Understanding Autism and Support Needs

Our understanding of autism has changed over time. In the past, diagnoses such as Autistic Disorder and Asperger’s Disorder were considered separate conditions. Today, the DSM-5-TR brings these presentations under the single diagnosis of Autism Spectrum Disorder (ASD).

In Australia, autism assessment and diagnosis may be guided by the DSM-5-TR or the ICD-11.

The word spectrum is important because autism can look very different from one person to another. There is no single way to be autistic, and support needs can also change depending on the person, their environment and the situation.

The DSM-5 describes three levels of support needs:

  • Level 1, requiring support: A person may communicate using spoken language and be quite independent in many areas, but may need support with social communication, flexibility, organisation, planning or navigating everyday social situations.

  • Level 2, requiring substantial support: A person may experience more noticeable differences in communication and social interaction and may need greater support with changes in routine, flexibility and everyday activities.

  • Level 3, requiring very substantial support: A person may have significant communication and support needs and may require substantial assistance to manage everyday activities, transitions and changes in their environment.

It is important to remember that these levels are not a measure of a person's potential. They are intended to describe the level of support someone may need. Support needs can also vary across different areas of life and can change over time.

Areas Where We May See Developmental Differences

Social Interaction and Emotional Development

Social interaction is one area where differences may become noticeable early in childhood. An autistic child may communicate or connect with others in ways that are different from what we typically expect.

For example, they may not consistently respond to their name, may use less eye contact, prefer playing independently, or find it difficult to understand some social cues or emotions.

These differences don't mean that an autistic child doesn't want connection. Often, it means they may experience and communicate connection in their own way.

Communication and Language

Communication can look very different from one autistic child to another.

Some children may experience significant delays in developing spoken language, while others may use many words but find the back-and-forth nature of conversation challenging. Some children may repeat words or phrases they have heard, known as echolalia, which can be an important part of how they communicate and process language.

Communication is also much more than spoken words. Gestures, facial expressions, pictures, signs, devices and other forms of augmentative and alternative communication (AAC) can all provide meaningful ways for a child to express themselves.

Routines, Repetition and Interests

Many autistic children find comfort in predictability and familiar routines. Changes that may seem small to others can sometimes feel very big and overwhelming.

This might look like becoming distressed when a routine changes, repeating particular movements or actions, or developing a strong and passionate interest in a particular topic.

These interests and repetitive behaviours can also be a source of enjoyment, comfort, connection and learning. Our role is not simply to remove these behaviours, but to understand what they are communicating and whether the child needs additional support.

Sensory Differences

Autistic people can also experience the world differently through their senses.

Some children may be highly sensitive to sounds, lights, textures, smells or touch, while others may seek out particular sensory experiences. For example, a child might become overwhelmed by loud noises, dislike certain clothing textures, or seek movement and physical sensations throughout the day.

When we understand a child's sensory preferences, we can make changes to their environment that help them feel safer, more comfortable and ready to engage.

Supporting Communication and Transitions

Because every autistic child has different strengths and support needs, strategies should always be individualised.

Transitions can be particularly challenging. This might mean moving from one activity to another, starting school, changing classrooms, visiting a new environment, or eventually preparing for adulthood.

For some children, knowing what is going to happen next can make a significant difference.

Communication Support

Some children benefit from being explicitly taught social communication skills, while others may communicate most effectively using visual supports, AAC, gestures, signs or other communication systems.

The goal is always to support meaningful communication and give each child a reliable way to express their needs, choices, feelings and ideas.

Visual Supports and Predictability

Visual schedules, first-then boards, social stories and other visual supports can help children understand what is happening now and what is coming next.

These tools can make expectations clearer, reduce uncertainty and give children a greater sense of control over their environment.

Preparing for Change

Transitions are often easier when we prepare for them ahead of time. Introducing a new environment gradually, practising new routines, using familiar objects or people as anchors, and giving children plenty of opportunities to become comfortable with change can all help.

Most importantly, we want to meet children where they are rather than expecting them to simply adapt to environments that may not work for them.

Moving Forward Together

At Take My Hand Centre, we believe supporting an autistic child is about more than meeting developmental milestones.

It starts with understanding the child as an individual, including their strengths, interests, communication style, sensory needs, preferences and the areas where they may need support.

Through autism consulting and coaching, I work alongside parents and families to make sense of their child’s needs, build their confidence and find practical ways to support them at home and in everyday life.

Every child deserves to be understood, supported and valued for who they are. When families have a better understanding of their child and what they need, it becomes easier to make informed decisions, advocate for their needs and create environments where they can feel comfortable, connected and supported.