“All there is to thinking, he said, is seeing something noticeable which makes you see something you weren’t noticing which makes you see something that isn’t even visible.”
Norman Maclean, A River Runs Through It
‘Sometimes a teacher needs to hear what the student is NOT saying.’
Robert John Meehan
I spend a lot of my time as a mathematics teacher educator encouraging, enabling, and enacting the art of noticing with pre-service teachers.
Teaching is, at its heart, an act of noticing. Whether you are working with a preschool child learning to count, a primary student grappling with fractions, or a postgraduate student wrestling with learning how to teach, the process is remarkably similar. Effective teachers are constantly noticing, interpreting, and responding. We notice what students say, what they do, what they understand, what they misunderstand, and sometimes even what they choose not to say.
I first encountered the term professional teacher noticing at the 15th International Congress on Mathematical Education in Sydney in 2024. It was not the first time I had noticed things. I had been doing that all my life. What was new was discovering that this ongoing process of observing, interpreting, and responding had a name, a research base, and a structure.
Listening to researchers describe professional noticing felt a little like discovering that something I had always done instinctively had finally been given a label.
The more I reflected on the idea, however, the more I realised that my interest in noticing extended far beyond teaching.
One of my favourite tools for developing curiosity in students is the use of photographs, or as many mathematics educators describe it, putting your “Maths Eyes” on. It is something I have always done, often without even realising it.

Here’s an example from a meal at Wakuda in Marina Bay Sands. I took a photograph of it, not because it was food—I rarely photograph my meals—but because of the arrangement. Four identical portions, carefully positioned and balanced in colour, shape, and space. Before I tasted anything, I found myself noticing the symmetry and pattern. Looking back, I realise I was doing exactly what I encourage my pre-service teachers to do: slow down, look carefully, pay attention, and appreciate what is there before rushing in, whether to eat or to judge its meaning.
Long before I became a teacher educator, I had been noticing patterns, relationships, contradictions, and stories in the world around me. I noticed them while travelling, while taking photographs, while sitting in airports, wandering through markets, watching sunsets, or simply observing the interactions between people.
Professional noticing may have given me a language for what I do as an educator, but it did not explain where that habit of mind came from.
Alongside the use of photographs to spark curiosity, two of the most powerful questions a mathematics teacher can ask are deceptively simple:
What do you notice?
Closely followed by:
What do you wonder?
I believe these are two of the most important questions any mathematics teacher can ask.
They invite students to stop. To slow down. To be curious.
Too often mathematics is perceived as a subject of answers. Find the answer. Find it quickly. Check if it is right. Move on to the next question. The emphasis can easily become speed and accuracy rather than thinking and understanding.
“What do you notice?” changes the conversation.
There is no answer to find. There is no race to be won. Students are simply invited to look carefully and share what they see. Some notice patterns. Some notice relationships. Some notice something unusual or unexpected. Others notice details that everybody else has overlooked.
Then comes the second question.
What do you wonder?
This is where the real magic begins.
Wondering gives students permission to be curious. It acknowledges that different people think differently and that curiosity can take us in many directions. One student might wonder how something works. Another might wonder why it happens. A third might wonder what would change if one element was different.
There is no single correct wonder.
There is simply the opportunity to explore.
As children, we are naturally curious. We ask questions constantly. We investigate, experiment, and imagine. Yet somewhere along the way, many of us learn that education is about getting the right answer rather than asking interesting questions. The curriculum becomes more crowded, the expectations become more structured, and curiosity can gradually be squeezed out.
For me, the power of “What do you notice?” and “What do you wonder?” is that they create space for curiosity to return. They remind students that learning begins not with answers, but with paying attention.
When we travel, whether it is to the next town, another state, or a country on the other side of the world, we have choices about how we move through the space. We can rush from attraction to attraction on what could be referred to as an “ABC Tour” – Another Bloody Cathedral. We tick the landmarks off the list, take the obligatory photographs, and move on to the next destination. Before long, everything begins to blur together and it becomes difficult to remember one place from another.
Or we can slow down.
We can sit for a while. We can watch. We can listen.
Noticing is not just a teaching skill. It is also a way of looking at the world.
We can ask the same questions that I ask my pre-service teachers:

What do you notice? (It’s very symmetrical. It has a particular style to it. There’s grass growing on it. It could do with a good clean.)
What do you wonder? (Is it a Catholic Cathedral? Is it is a hot country? Is it really 4:45? Why is that woman standing there? Who took the photo?)
What is worth noticing here? What is happening beyond the obvious? What stories are being told? What values are being expressed? What relationships exist between people, places, and histories? What can this place teach us about itself if we are willing to linger long enough to pay attention?
Take, for example, these photographs of Adelaide Airport.



If I simply asked, What do you notice? most people would probably say the same things. The terminal appears almost empty. There are very few people visible. The shops seem deserted. There is little sign of movement or activity. For an airport, it feels strangely quiet.
Those observations are important because they are based on what we can actually see.
But then comes the second question.
What do you wonder?
Why is it so empty?
Was it taken early in the morning? Late at night? Was there a strike? Had flights been cancelled? Was Adelaide simply quieter than other cities?
At this point we begin moving beyond observation into interpretation.
Only when we know the context does the story become clearer.
These photographs were taken at the height of the COVID pandemic in 2021. Travel restrictions were in place. Borders were opening and closing. People were reluctant or unable to travel. What initially appeared unusual suddenly made perfect sense.
The photographs themselves had not changed.
What changed was our understanding.
Some of my most memorable travel experiences have not come from the famous landmarks. They have come from wandering through Little India in Singapore and noticing the contrast between traditional market stalls and modern high-rise apartments. They have come from standing in a monastery in the Philippines and wondering what a monumental act of faith says about the priorities and values of a community. They have come from exploring enclosed streets lined with colonial buildings and considering the stories of the people who once lived and worked there.
They have come from watching cargo ships waiting offshore and discovering the hidden city that supports the visible one. They have come from appreciating beauty, whether it is created from glass and steel or found in the natural world. They have come from spending a morning in a Balinese market learning how a meal is created rather than simply eating it.






The longer I travel, the more I realise that the most interesting stories are rarely the ones printed in the guidebook. They are the stories that reveal themselves when we stop long enough to notice.
That, perhaps, is one of the most important lessons that noticing can teach us. Observation comes before interpretation. Curiosity comes before certainty. Good noticing requires us to slow down long enough to look carefully, wonder thoughtfully, and resist the temptation to jump immediately to conclusions.
In teaching, travelling, and life more generally, context matters.
Before knowing comes noticing.
Before understanding comes wondering.
For years my friends have joked about my ABS photographs — Another Bloody Sunset. Wherever I travel, sooner or later there will be another sunset posted online. Yet I have never really photographed sunsets because they are beautiful, although many are. I photograph them because they remind me to stop.
Whether I am looking at a student’s mathematical thinking, a market in Singapore, a monastery in the Philippines, an empty airport during COVID, or the sun disappearing below the horizon, the process is the same. I pause. I look. I wonder.
The longer I teach, travel and learn, the more convinced I become that noticing is not simply a professional skill. It is a habit of mind. A way of engaging with the world. A willingness to linger long enough to see what others might miss.
And sometimes, if you are lucky, that lingering is rewarded with another bloody sunset.
Perhaps that is why, wherever I travel, I keep asking the same two questions: What do you notice? What do you wonder?













































































The contrasts that exist in the Pilbara are amazing and I’ll show you a few in the next post, but at the moment, at this time of the year, it is simply hot. It’s a bit like the build up in the Top End which at this time of the year, it gets more and more humid until it just has to rain and everything cools down and then it starts all over again. Here, it’s not the humidity that’s the killer; it’s the heat. It builds and builds, then a ‘cool’ change comes through and it drops to …. 38.
They then repeated with yellow weights that looked like a sombrero, which they labelled as ‘s.’ The students were totally engaged, which for this group was pretty impressive, and they were solving algebraic equations without realising it. When the teacher informed them the end of the lesson, they were all pretty impressed with themselves.




