What one classroom experiment—and decades of psychological research—can teach us about prejudice, identity, and the human need to belong.
On April 4, 1968, Martin Luther King Jr. was assassinated.
Across the United States, grief, anger, and confusion followed. Cities erupted in protest, while many Americans struggled to understand how a leader devoted to nonviolence could be murdered because of the color of his skin.
The next morning, in the small, overwhelmingly white farming community of Riceville, Iowa, third-grade teacher Jane Elliott faced a difficult question.
How do you explain racism to children who have never experienced it?
She realized that lectures and discussions were unlikely to be enough. Her students had already talked about racism throughout the school year, yet the concepts remained abstract. They understood the words, but not the experience.
So Elliott decided to do something few teachers would have considered.
She divided her class by eye color.
Blue-eyed children were told they were smarter, cleaner, kinder, and more trustworthy than their brown-eyed classmates. They received extra privileges while the brown-eyed children were restricted, criticized, and publicly identified by wearing collars around their necks. The following day, the roles were reversed.
What happened next has become one of the most discussed educational demonstrations of prejudice ever recorded.
The documentary A Class Divided follows both the original classroom experiment and a reunion with those same students years later, revealing how profoundly the experience shaped their understanding of discrimination. While Elliott’s exercise was not a controlled scientific experiment, many of the psychological patterns it exposed have since been supported by decades of research on prejudice, conformity, identity, stereotype threat, and social categorization.
More than fifty years later, the documentary still asks a question that remains deeply relevant.
How does racism begin?
Racism Is Learned, Not Inherited
One of the most striking aspects of Jane Elliott’s classroom is how ordinary the children appear before the exercise begins. They laugh together, help one another, and interact as friends. Nothing suggests they are naturally inclined toward cruelty.
Within minutes, everything changes.
Simply because an authority figure declared one group superior, the children began treating each other differently. Those assigned to the “superior” group became more confident and assertive. Some quickly embraced their elevated status, teasing and excluding classmates who had been their friends only moments before. Meanwhile, the children labeled as inferior became quieter, less confident, and visibly distressed.
The speed of this transformation is unsettling because it reveals something fundamental about human psychology.
Prejudice does not require generations of hatred to begin. It can emerge whenever people are encouraged to see one group as more valuable than another.
Modern psychology supports this observation. Henri Tajfel’s pioneering work on Social Identity Theory demonstrated that people readily divide themselves into “us” and “them,” even when the categories are completely arbitrary. His famous “minimal group” experiments found that participants often favored members of their own group despite having been assigned to those groups randomly and having no prior relationship with them.
In other words, the human mind is remarkably efficient at creating divisions.
Race is one example.
Nationality is another.
Religion, politics, gender, occupation, and countless other identities can become boundaries separating “our people” from “their people.”
Jane Elliott’s experiment simply compressed this process into two unforgettable days.
Authority Shapes Reality
Another lesson from A Class Divided is the extraordinary influence of authority.
The children did not independently decide that blue-eyed classmates were superior. They believed it because someone they trusted said it was true.
Teachers occupy a unique position in children’s lives. They establish rules, define expectations, and often become trusted sources of truth. When Elliott confidently announced that blue-eyed children were smarter and more capable, many students accepted the claim without requiring evidence.
Adults are not as different as we might like to believe.
Psychologists have repeatedly demonstrated that authority influences perception, memory, and behavior. Stanley Milgram’s obedience experiments, though very different in design and purpose, revealed how willing ordinary people can be to follow perceived authority figures even when doing so conflicts with their own moral intuitions.
This does not mean people lack free will.
It means that social environments powerfully shape what feels reasonable, normal, and acceptable.
The difficulty begins when authority is mistaken for truth.
History repeatedly reminds us that governments, institutions, religious organizations, media, and influential leaders can all reinforce ideas that later generations recognize as deeply unjust. Understanding this tendency does not encourage cynicism. It encourages humility.
The question is not whether authority influences us.
The question is whether we remain willing to examine what authority asks us to believe.
Labels Change More Than Opinions
One of the documentary’s most fascinating observations involves academic performance.
Jane Elliott noticed that children assigned to the “inferior” group completed classroom tasks more slowly and performed worse than they had only a day earlier. Once the labels were reversed, the previously disadvantaged students improved dramatically.
Elliott interpreted this as evidence that expectations influence performance.
While her classroom observations were informal rather than controlled scientific research, later studies have consistently supported related ideas. Psychologists Claude Steele and Joshua Aronson, for example, demonstrated the phenomenon now known as stereotype threat, in which awareness of a negative stereotype can impair performance on cognitive tasks.
Expectations matter.
When people repeatedly receive messages suggesting they are less capable, less intelligent, or less valuable, those messages can begin affecting confidence, motivation, and performance.
The opposite is also true.
Encouragement, trust, and genuine confidence in someone’s abilities often create conditions in which people perform closer to their actual potential.
Notice what this reveals.
The labels themselves possessed no power.
The children gave them power by believing they described reality.
That distinction extends far beyond race.
Throughout life, people carry countless labels: successful, unsuccessful, gifted, average, conservative, liberal, masculine, feminine, introverted, outgoing.
Many of these descriptions serve practical purposes.
The problem arises when descriptions become identities.
Good People Can Participate in Harmful Systems
One of the easiest mistakes to make when discussing racism is imagining that prejudice belongs exclusively to bad people.
Jane Elliott’s students challenge that assumption.
Before the exercise, they were thoughtful children.
During the exercise, some became dismissive, insulting, and exclusionary.
Afterward, many expressed sadness and regret over how quickly they had changed.
The transformation is uncomfortable because it suggests that ordinary people are capable of participating in unfair systems without seeing themselves as cruel.
The same lesson appears later in the documentary when Elliott conducts a similar exercise with adults working in corrections. Many participants describe feeling powerless, frustrated, or humiliated within only a few hours. Others acknowledge remaining silent rather than defending those being mistreated because speaking up felt risky.
These reactions reflect another well-established psychological finding.
People often adapt to the norms of the systems around them.
If discrimination becomes normalized, many individuals participate without believing themselves to be prejudiced. Some actively enforce unfair rules. Others quietly comply because challenging the system carries social costs.
History demonstrates this pattern repeatedly.
The question is rarely whether a society contains good people.
The deeper question is whether good people recognize injustice while it is happening—or only after it has become history.
Silence Often Protects Prejudice
One of the most revealing moments in the adult workshop occurs during the discussion afterward.
Jane Elliott asks the blue-eyed participants why they did not support one another more forcefully during the exercise. Several admit they stayed quiet because they hoped someone else would speak first. Others acknowledge that remaining silent felt safer than risking becoming a target themselves.
This response echoes what psychologists call the bystander effect and pluralistic ignorance. When people witness unfairness in a group setting, they often look to others for cues about how to respond. If no one objects, silence can be mistaken for agreement.
Prejudice does not survive only because some people actively promote it.
It also survives because many people choose not to challenge it.
Speaking up is rarely comfortable. It risks conflict, embarrassment, and social rejection.
Remaining silent, however, quietly communicates that the existing behavior is acceptable.
Empathy Changes More Than Opinions
Years after the original classroom exercise, many of Elliott’s former students describe how deeply the experience affected them throughout adulthood.
Some explain that whenever they witnessed racism, they remembered what it felt like to be judged by something they could not control. Others describe teaching their own children not to judge people by appearance because they had personally experienced the pain of arbitrary discrimination.
This may be the documentary’s most enduring lesson.
Facts can change opinions.
Experience changes understanding.
The exercise did not give the children permanent insight into what it means to live as a racial minority in America. Elliott herself makes that distinction clear. A two-day simulation cannot reproduce generations of discrimination or systemic inequality.
What it could do was create enough discomfort to make empathy possible.
Instead of asking children to imagine discrimination intellectually, it allowed them to feel a small part of its emotional weight.
The Deeper Lesson Isn’t About Race
It would be easy to watch A Class Divided and conclude that it is simply a documentary about racism.
It is.
But it is also about something even more fundamental.
The experiment reveals how quickly the human mind organizes experience into categories. Once those categories appear, they begin carrying assumptions, expectations, privileges, and fears. Before long, people no longer see individuals. They see representatives of a group.
The labels become reality.
Race is one example of this process, but the same psychological pattern appears throughout human life.
Political identities.
Religious identities.
National identities.
Economic identities.
Gender identities.
Even the stories we tell about ourselves.
Each identity can provide belonging and meaning. Yet every identity also carries the possibility of creating distance between ourselves and others when we mistake the label for the person.
The Illusion of Control
Consider what prejudice ultimately promises.
It promises certainty.
If people can be neatly categorized, the world becomes simpler. We know who belongs, who does not, who can be trusted, and who should be feared.
The attraction is understandable.
Human beings naturally seek order in an uncertain world.
The difficulty begins when certainty becomes more valuable than reality.
No label can fully describe a human being.
No category can capture the complexity of a person’s life, character, relationships, struggles, or potential. Yet the mind continually prefers simple stories over complicated realities because simple stories feel easier to control.
This is why prejudice is not only a social problem.
It is also a psychological one.
The need to reduce uncertainty encourages us to replace curiosity with conclusions. Instead of meeting another person, we meet our assumptions about them.
Existentially, the invitation is even deeper.
Before we are white or Black, conservative or liberal, religious or atheist, successful or unsuccessful, we are aware.
Awareness exists before every identity we inherit.
That does not erase history or injustice, nor does it diminish the importance of confronting discrimination wherever it exists. Rather, it reminds us that every label describes only one small aspect of an infinitely more complex human being.
Jane Elliott’s experiment did not eliminate racism.
It revealed how quickly the mind can create it.
That may be its greatest lesson.
If prejudice can be learned, it can also be questioned.
If identities can divide us, they can also be held more lightly.
And if awareness comes before every label, then perhaps genuine understanding begins not by defending our identities, but by seeing one another before the categories that so often keep us apart.
Continue the Exploration
How Racism Begins is ultimately a story about more than race. It is a story about how the mind creates identity, seeks certainty, and mistakes labels for reality. These same psychological patterns appear in politics, religion, gender, success, failure, and nearly every aspect of human life.
If you’d like to explore these ideas more deeply, Proof That You’re God examines how awareness exists before every identity we inherit, inviting a deeper investigation into the stories we tell about ourselves and the freedom that becomes possible when we begin seeing beyond them.
If you haven’t seen Jane Elliott’s A Class Divided, it’s well worth watching. Even decades after it was filmed, it remains one of the most powerful documentaries ever made about prejudice, identity, and the human capacity for both division and empathy.
You can watch the full documentary for free on the official FRONTLINE PBS YouTube channel:
🎥 A Class Divided (Full Documentary) | FRONTLINE PBS
Watch on YouTube
It is also available on the official PBS FRONTLINE website, along with background materials and educational resources.
