What if meaningful change in math classrooms didn’t require a massive overhaul?
In this episode, I sit down with Sam Otten to talk about math instructional nudges. These are small, research-based shifts that can improve instruction without overwhelming teachers.
Because here’s the truth.
Teachers are not resisting growth.
They are exhausted by initiatives.
For years, professional development has leaned toward big transformations: new curriculum, new frameworks, full redesigns. And yet, classroom instruction across the country still looks surprisingly traditional.
That’s not a failure of teachers.
It may be a failure of scale.
So what if the problem isn’t willingness, but approach?
🎧 If you’re nodding along and want to hear the full conversation unfold, you can listen to the episode here.
Why Big Change Hasn’t Spread
Research observations across multiple states show that the vast majority of math instruction still follows a teacher-led model.
Even after years of reform efforts, new standards, and countless PD days.
Clearly, something isn’t translating.
During our conversation, Sam shared why large instructional overhauls often struggle to spread nationally. They require significant buy-in. They demand time teachers do not have. And sometimes, they unintentionally communicate that what teachers are already doing is not enough.
That tension matters.
Because sustainable change rarely begins with disruption. It usually begins with refinement.
What Are Math Instructional Nudges?
Instead of asking teachers to reinvent their classrooms, Sam’s research explores something far more practical.
Small nudges.
Brief, focused shifts that enhance what teachers are already doing.
Not a new curriculum, a massive philosophical pivot, or a year-long initiative.
A nudge might be as simple as leaving worked examples visible on the board a little longer. Or taking 20 intentional seconds at the end of class to clearly name the math idea students just explored.
That’s it.
These nudges are short, voluntary, and easy to implement. Teachers choose which ones to try. The goal is not compliance. The goal is momentum.
And momentum builds confidence.
Why Small Shifts Work
Here’s what makes this approach powerful.
First, it respects teacher expertise.
Instead of replacing current practices, nudges refine them. When teachers feel seen for what they already do well, they are far more open to improvement.
Second, the cognitive load is low. A one-page nudge feels manageable. Teachers can read it quickly and try it the next day.
Finally, the effects compound. One small improvement may seem insignificant. However, multiple small improvements over time can transform classroom experience.
This is the part that really resonated with me.
We would never ask students to leap from confusion to mastery in one jump. Instead, we scaffold. We build gradually. We nudge.
Why wouldn’t we approach teacher growth the same way?
A Different Way to Think About Professional Development
Traditional PD often centers on large-scale change. But large-scale change frequently triggers resistance, especially when it feels imposed.
Nudges work differently.
They are shared, not mandated.
Invite experimentation.
And they spread organically.
In our conversation, Sam explains how these nudges are developed, refined, and shared publicly. He also discusses what early research suggests about their impact on student learning.
The structure is simple by design.
And that simplicity may be the point.
Why Coaches Should Be Listening Closely
If you are a math coach, this episode is especially important.
Coaches constantly balance vision with feasibility. They see what could improve. At the same time, they know how stretched teachers already feel.
Math instructional nudges offer a middle path.
Instead of launching another sweeping initiative, imagine introducing one small shift per month. Imagine using a nudge as a PLC discussion starter. Imagine building a culture of refinement rather than replacement.
That kind of change feels sustainable.
And sustainable change is what we actually need.
What We Get Wrong About Change
There’s a quiet assumption in education that bigger equals better.
Bigger reform, programs, and promises.
However, big moves often create big backlash.
Small improvements, on the other hand, build trust. They feel doable. They generate quick wins. Over time, those wins stack.
By the end of our conversation, I found myself reconsidering what professional development should look like in this season of education.
Maybe transformation does not begin with disruption.
Maybe it begins with a nudge.
🎧 Listen + Subscribe
If you care about realistic, research-based improvement in math classrooms, this conversation will stretch your thinking.
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💬 Connect with Sam
Dr. Samuel Otten brings deep expertise and practical insight into helping teachers strengthen mathematical practices in math classrooms. With advanced degrees from Michigan State University and roots at Grand Valley State University, his journey reflects a lifelong commitment to improving math education.
SamuelOtten.com
Leave a Trace: https://practicedrivenpd.com/instructional-nudges/leave-a-trace/
Put a Bow on It: https://practicedrivenpd.com/instructional-nudges/put-a-bow-on-it/
🫱🏼🫲🏾 If you’re a math coach listening to this conversation…
If you’re a math coach listening to this conversation and thinking, Yes… but how do I actually bring this into my building? … that’s exactly why the Math Coach Huddle exists.
Because ideas like math instructional nudges sound simple.
But implementing them thoughtfully? That takes support.
Inside the Huddle, we talk about how to introduce small shifts without triggering overwhelm. We think through how to share research in ways that build trust. We plan what it looks like to move from one nudge… to momentum.
Not another initiative.
Not another mandate.
Just steady, sustainable growth.
If this episode sparked something for you, the Math Coach Huddle is where we keep that spark going.