What every Australian school should understand about MTSS
Dispelling some common myths
Multi-Tiered Systems of Support (MTSS) is gaining traction in Australian schools as a practical, evidence-informed way to organise support for student learning, behaviour, and wellbeing. But as interest grows, so do misunderstandings. Two myths in particular tend to be pervasive:
MTSS is instead of PBIS.
MTSS is only about literacy.
Myth 1: “MTSS is instead of PBIS”
This is one of the most common points of confusion. Schools might encounter PBIS through behaviour initiatives, while MTSS is often introduced through academic frameworks. It can feel like two separate approaches competing for attention.
The reality is that PBIS is an example of using an MTSS framework to improve student learning, wellbeing, and behaviour. MTSS is the broader framework which applies to any domain where students may need support: academic, behavioural, or social-emotional wellbeing. PBIS, on the other hand, is a specific, evidence-based approach for organising behavioural supports within that broader MTSS structure.
In practice, strong schools don’t run separate “MTSS” and “PBIS” initiatives. Instead, they:
use a shared tiered structure across learning, behaviour, and wellbeing
apply consistent data-based decision-making processes
coordinate teams so that supports are aligned, not duplicated.
When implemented well, PBIS strengthens the behavioural side of MTSS, while broadening the focus through MTSS ensures that behaviour is not treated in isolation from learning and wellbeing.
Myth 2: “MTSS is only about literacy”
Another persistent misconception is that MTSS is essentially a literacy framework, tied to reading intervention or screening for phonemic awareness.
It’s true that many schools first encounter MTSS through literacy, often because of strong evidence and available tools, however true MTSS is designed to support:
academic learning (e.g., literacy, numeracy)
behaviour
social-emotional wellbeing.
The defining feature of MTSS is how schools organise support through:
a continuum of evidence-informed practices across three tiers
screening and early intervention.
regular progress monitoring
clear decision rules for adjusting support
systems to ensure supports are delivered consistently and efficiently.
If students aren’t settled, present, and ready to engage, even the strongest literacy instruction won’t land. MTSS reaches its full potential when it’s used to create the conditions for learning, not just to support literacy in isolation.
Why address these myths?
Treating PBIS and MTSS as separate is likely to result in:
teams becoming fragmented
data systems being duplicated
students experiencing disconnected supports.
If schools limit MTSS to literacy:
behaviour and wellbeing supports remain reactive
staff workload increases due to lack of alignment
opportunities for early intervention are missed.
When we move beyond the myths, MTSS becomes what it was always intended to be:
a practical framework that helps schools do more of what works, for more students, with greater clarity, cohesion, and impact.