Why Students (and Adults) Struggle to Be Wrong — and How to Help

December 6, 2025 / Dave Eberwein / Leave a comment

The beginning of my career had me teaching high school Science, Chemistry and Math. One of my fondest memories was organizing science fairs at two different schools. The science fair was a great way for my students to expand both their knowledge in an area of interest, as well as give them practical experience in the scientific method.

Here’s an example of a typical conversation I might have had:

Two Grade 9 students set out to test whether plants grow better when exposed to music. They were excited, confident, and — after two weeks — convinced they were right. The plants exposed to music looked ‘happier’, they told me.

But when I gently pointed out that the control group had actually grown taller, they hesitated. “Maybe the music plants are just slower starters.”

The students aren’t being dishonest. They are being human — exhibiting something called Confirmation Bias.

Confirmation Bias: Our brain’s tendency to seek out, interpret and remember information that supports what we already believe.

It’s why a student who thinks they’re ‘bad at math’ might ignore a good test score one day, or why a child convinced their teacher or another student doesn’t like them may interpret neutral feedback from others as criticism.

It’s not a character flaw. It’s a feature of cognition — especially in an adolescent brain.

The Brain’s Shortcut System

Our brains are wired for efficiency. Every second, we’re bombarded with sensory input, and to make sense of it all, the brain relies on heuristics — mental shortcuts that help us make quick decisions. Daniel Kahneman, Nobel laureate and author of Thinking, Fast and Slow, describes this as the interplay between “System 1” (fast, intuitive thinking) and “System 2” (slow, analytical thinking). Confirmation Bias lives in System 1 — it’s fast, automatic, and invisible.

This heuristic shortcut helps us feel safe and certain. Confirmation Bias allows us to make sense of something very quickly. But, in a learning environment, it can unfortunately also close the doors to a more complete understanding.

The Adolescent Brain and Belief Formation

Children and adolescents are especially vulnerable to Confirmation Bias. Their prefrontal cortex — the part of the brain responsible for critical thinking and self-regulation — is still developing well into their twenties. Research shows that the adolescent brain is particularly sensitive to social feedback. Beliefs formed during adolescence can become deeply entrenched and difficult to unseat — hence, the problem of changing “I can’t do math” or “Susie doesn’t like me”.

In school, this means that early experiences — both positive and negative — shape how students see themselves as learners for years to come.

When Confirmation Bias Meets the Curriculum

Confirmation Bias doesn’t just affect how students see themselves. It influences how they engage with content. A student who believes that History is ‘boring’ may skim over content that is actually really engaging. Someone who thinks that science is‘ too hard’ might dismiss their own curiosity on the topic. This same idea applies to every subject area depending on what a student believes — they can’t do math, sing, dribble a basketball, or bake a cake.

And when students are asked to explore controversial or difficult topics — things like climate change, historical injustices, or ethical dilemmas — Confirmation Bias can make it harder to consider multiple perspectives. This can close the door to exploring deeper, more complete truths.

Teachers as Cognitive Coaches

Educators play a powerful role in shaping how students process information. The way we frame questions, give feedback, and design lessons can either reinforce or disrupt Confirmation Bias.

When students actually believe their abilities can grow, they’re more likely to embrace challenges and revise their thinking. But this requires intentionality on the part of teachers, parents and others who work with them. A well-meaning comment that they’ve done a ‘good job‘ can actually reinforce a fixed belief just as easily as it can encourage growth.

Disrupting Confirmation Bias

So how do we help students see beyond what they already believe?

Ask open-ended questions — Invite multiple interpretations of the same issue or event.
Encourage metacognition — Have students reflect on how they’re thinking, not just what they’re thinking.
Introduce disconfirming evidence — What would it take to change their mind?
Model intellectual humility — Share moments when you’ve changed your own thinking.

Technology and Media

In today’s world, Confirmation Bias doesn’t stop at the classroom. In a previous post (Implicit Bias: Yup, I’m Talking About You! – Feb 2022) I discussed how social media (e.g. Instagram, TikTok, X, Facebook) is designed to confirm our bias by showing us posts and reels that agree with us — in direct contradiction to what we hope to be doing in classrooms. For young minds still forming their worldviews, this can reinforce narrow thinking as they settle into the belief that they must be right because “I see it everywhere on social media.“

In Saanich Schools, teaching digital literacy — how to evaluate sources, question algorithms, and seek diverse perspectives is something we put a lot of effort into and will continue to do so.

A New Kind of Resilience

Helping students challenge their own beliefs isn’t about changing their views on being right. It’s about building cognitive resilience — the ability to sit with uncertainty, to revise one’s thinking, and to grow — to be confident enough in oneself to be open to other perspectives and, yes, to maybe being wrong.

And, let’s be clear, it’s not just students. Many adults also have a difficulty being wrong.

It’s why we see slow change on things that are destructive or hurtful — we know better, but we still carry on. Think of things like climate change, growing income disparity, intolerance towards others, stereotyping, and bigotry.

All of them wrong, yet they persist.

Building cognitive resilience is not just learning — it’s transformation. It’s building reflective, curious young people who are open to new ideas that can solve existing and future problems.

Teaching for Curiosity, Not Certainty

Education isn’t about filling students with facts. We have come past the point of thinking the goal of K-12 education is simply placing more facts and figures into their heads — yes, there are important lessons from history, science, math, reading, and physical literacy — however, education is about teaching students HOW to think, HOW to question, and HOW to stay curious — HOW to be open to conflicting information that should challenge one’s current understanding.

It’s about them being confident enough in themselves to be unsure.

Confirmation Bias is a natural part of being human. But when we help students recognize it, name it, and work through it, we give them a gift far greater than facts and certainty.

We give them the tools to keep learning.

_{(This post was written with assistance of an AI prompt on exploring confirmation bias in education. I changed much of the content and added significantly to the final product.)}

The Neuroscience of Nostalgia: Why Familiar Stories Feel So Good

November 17, 2025 / Dave Eberwein / 5 Comments

I’m fascinated by the exploration of brain function and, specifically, how it relates to education and student success. Neuroscience continues to be a great source of information for building an even better education system.

Before I begin my post on The Neuroscience of Nostalgia, let’s begin with talking about one of my favourite TV shows – M*A*S*H. I’ve watched the series at least 10 times over — probably more.

Why do I watch the same episodes again and again and again?

My ongoing commitment to this 1970s wartime sitcom is not because I’m bored or because I’m too lazy to watch something new — I watch them because they’re familiar. I can predict what’s coming — even knowing many of the script lines. There are no surprise endings. No plot twists. Just dry humour, heartfelt moments, and a sense of comfort in knowing everyone on the TV screen.

And, as it turns out, there’s strong neuroscience behind the importance of this familiarity.

When we rewatch a familiar show, listen to a favourite song, or read a treasured bedtime story to our children, our brains breathe a sigh of relief. The amygdala — the part of the brain that scans for danger like a hypervigilant squirrel — gets to take a break. It recognizes the storyline, the characters, the music. There’s no threat. Just Corporal Radar O’Reilly trying to keep the M*A*S*H camp running smoothly.

This is what neuroscientists call comfort-watching — something that reduces one’s cognitive load. Your prefrontal cortex — the part of your brain responsible for planning and decision-making gets to rest. When you comfort-watch (or comfort-listen or comfort-read) you already know what happens next. There’s no need to analyze, predict, or problem solve — you just relax and take it all in.

Science has shown that there is a fundamental need for our brains to find that ‘relax mode’ — to not worry about what might be coming next.

A 2012 study found that rewatching familiar shows helps people feel soothed, restored, and emotionally grounded. It’s not about entertainment—it’s about emotional safety. Another study showed that people turn to familiar media when they’re emotionally drained because it provides a sense of control and predictability.

So, how does comfort-watching, or comfort-listening or comfort-reading relate to the classroom? Think about why children insist on hearing the same story over and over again.

Why do Kindergarten students want to sing the same song every morning? It’s not because they lack imagination. It’s because their developing brains crave predictability. Neuroscience shows that repetition strengthens neural pathways, helping children process language, emotions, and cause-and-effect relationships.

There were reports that during the 2020 pandemic that large numbers of people turned to their childhood TV shows and movies. When surrounded by the unknowns of the pandemic, people found themselves surfing to find series or movies that were familiar. When the world feels chaotic, our nervous system reaches for what’s known. Predictable stories act like a buffer between us and the unknown. They bring order to chaos.

And for our students — especially those navigating big emotions, new environments, or transitions — familiarity is a powerful form of regulation.

This is why school routines matter.

Morning circle time on the carpet for Kindergarten students, consistent classroom expectations, emotionally safe spaces where a dysregulated child can surround themselves with familiarity — and, yes, even Pizza Fridays — all help students feel grounded. When we create predictable environments, we’re not just managing behaviour — we’re supporting brain development.

So, don’t despair when a child seeks familiarity. Think of it as their brain ‘taking a breath’ to become centered. Their brains are doing exactly what they’re wired to do — seek safety through familiarity.

And if you find yourself rewatching M*A*S*H, Friends or Star Wars after a long day, know that you’re not being lazy.

You’re self-regulating. Neuroscience says so.

The Teenage Brain: A New Perspective

December 4, 2024 / Dave Eberwein / 1 Comment

The teenage years have always been a big adventure — a time of seemingly boundless energy and enthusiasm. There has also been a tendency to sometimes label the teenager as impulsive and reckless — risk-takers who lack the decision-making abilities of adults.

The Wonderfully Complex and Morphing Brain of a Teenager

This characterization is misleading as recent neuroscience research is flipping this narrative on its head.

In an article by Zara Abrams, “What neuroscience tells us about the teenage brain” (2022), it turns out that the teenage brain is not just a bundle of chaos heading towards risky behaviour, but a powerhouse of neural potential and adaptability.

Here are some recent findings …

One of the most fascinating aspects of the teenage brain is its heightened sensitivity to rewards. This trait is driven by increased neural activity in an area known as the ventral striatum, a part of the brain that is involved in decision making, motor control, emotion, habit formation, and reward. This area has long been linked to risky behaviors like substance use, however, in the right environment this same sensitivity can lead to positive outcomes, such as increased motivation and social engagement. Not surprisingly, when teens are exposed to positive environments, their resulting actions tend to point in directions that can lead to some pretty amazing things.

There is building, brain-based evidence to support this.

Here are three brief descriptions of some amazing youth and the impacts they made in their teens:

Autumn Peltier
- At just 13 years of age, Canadian Indigenous rights activist Autumn Peltier addressed the United Nations General Assembly, urging them to recognize the importance of water protection. In 2019 and at the young age of 15, Autumn Peltier was named the chief water commissioner for the Anishinabek Nation, a group representing 40 First Nations across Ontario.
Malala Yousafzai
- As a child, Malala Yousafzai went to her dad’s school in Pakistan to be one of the few girls to get an education. One day as she was on her way to school, she was shot by a gunman simply because she was a student. Surviving this horrific event, Malala has become a passionate, global advocate for women’s educational rights.
Greta Thunberg
- In 2019, this Swedish teen was named ‘Person of the Year’ by Time Magazine in recognition of her work as a climate change activist: “We can’t just continue living as if there was no tomorrow, because there is a tomorrow.”

Today, researchers are using sophisticated methods to study the teenage brain including conducting longitudinal studies. Instead of just comparing different age groups, researchers are following the same individuals over time. This approach is providing an even clearer picture of how the teenage brain develops and changes during adolescence.

The teenage brain is more malleable than we had thought.

This malleability or neuroplasticity means that teens are particularly adept at learning and adapting to new situations — all while their brains are undergoing a significant re-wiring — where their neural network is reducing grey matter (the cell bodies and connections between nerves) while increasing white matter (the insulated neural highways that speed information within the brain and throughout the body).

Teens are living their complex lives while their brains are making neural changes affecting their thinking, reasoning and actions. And … these changes are not uniform. This variability makes adolescence a unique and critical period, where it can lead to both positive and negative teen behavior.

This is where parents and educators play a pivotal role.

We cannot easily change certain environmental conditions like socio-economic status or even where we live, but we CAN influence an environmental condition that is likely even more important — our relationships with teens.

And because of this, parents and educators play a crucial role in shaping the teenage brain. Positive reinforcement and supportive relationships can steer teens towards healthier behaviors. We can’t always control teen life stressors, but we can model how we react to them and also how we support teens. Understanding this developing science behind teenager brain development can only help influential adults such as parents and educators provide the best possible guidance for youth.

Despite these advances in research, there’s still much to learn about the teenage brain — an incredible, morphing marvel of nature.

So, the next time you see a teenager remember – their brain is not just a work in progress, but a potential masterpiece in the making in which we can all play a role.