One of the most misunderstood parts of Upper Elementary is just how complicated the children’s social world becomes.

From the outside, adults often see arguments over small things. Who sat where at lunch. Who didn’t include someone in a game. Who said something during recess that hurt someone else’s feelings.

To adults, these problems can look trivial.

But inside the mind of a 9–12 year old, these moments are anything but small.

They are enormous.

Upper Elementary children are in what Maria Montessori described as the second plane of development. This is the stage where children begin to shift away from the purely absorbent mind of early childhood and start developing a deep interest in morality, fairness, rules, and relationships.

They want to understand how people work.

They want to understand justice.

And they practice those lessons on each other.

Constantly.

Friendship Stops Being Simple

In the earlier years, friendships are relatively simple. Children play together because they enjoy the same activity. If a disagreement happens, it usually resolves quickly and everyone goes back to playing.

But around nine years old, something changes.

Children begin forming stronger alliances. Small groups emerge. Loyalty becomes important. Suddenly, belonging matters a great deal.

Being included feels wonderful.

Being excluded can feel devastating.

Children at this age are also learning how powerful their words can be. They experiment with humor, sometimes without realizing when they’ve crossed a line. They gossip. They form opinions about each other. They test social boundaries.

From an adult perspective, it can sometimes feel like constant drama.

But what we are actually witnessing is development.

The Classroom Becomes a Small Society

In Upper Elementary Montessori environments, the classroom functions as a small society.

Children collaborate constantly. They work in research groups, share responsibilities, divide tasks, and navigate long-term projects together.

This means that social challenges naturally arise.

Someone isn’t doing their share of the work.

Someone interrupts.

Someone dominates the conversation.

Someone feels left out.

Someone says something hurtful.

These situations are not rare interruptions to the learning process.

They are part of the learning process.

Children are figuring out what it means to live and work within a community.

And that is not easy.

Their Sense of Justice Is Powerful

One of the most defining characteristics of children in the second plane is their intense sense of justice.

They care deeply about what is fair.

They notice when someone breaks a rule. They notice when someone receives special treatment. They notice when something feels unjust.

And when something feels unfair, they react strongly.

But while their moral awareness is growing rapidly, their emotional regulation is still developing.

They feel things deeply, but they are still learning how to manage those feelings.

This combination can make social situations incredibly charged.

A disagreement can feel like betrayal.

A joke can feel humiliating.

Being left out can feel catastrophic.

These reactions can seem dramatic to adults, but they are very real for the child experiencing them.

Why These Social Struggles Matter

It can sometimes feel like social conflicts are distractions from academic work.

But the reality is that these experiences are some of the most important lessons happening in the classroom.

Children are learning how to:

• listen to someone else’s perspective
• express frustration without hurting others
• repair relationships after mistakes
• stand up for themselves respectfully
• compromise
• collaborate with people who think differently

These skills cannot be taught through a worksheet or a lesson.

They are learned through experience.

And experience often includes mistakes.

The Emotional Work of Teaching

For teachers, navigating the social world of Upper Elementary can be emotionally exhausting.

It is not uncommon to spend the morning guiding academic lessons and the afternoon helping children navigate complicated social situations.

Mediating conflicts.

Helping children reflect on their actions.

Encouraging empathy.

Reminding them that words matter.

It requires patience, energy, and a constant balancing act between guiding children and allowing them the space to solve problems themselves.

Because if we solve every conflict for them, they never learn how to resolve one on their own.

Trusting the Process

For parents, hearing about these social struggles can be difficult. No one likes hearing that their child was upset, involved in conflict, or struggling socially.

But these moments are not signs that something is wrong.

They are signs that children are doing the deep developmental work of this stage of life.

Upper Elementary is not just about academics.

It is about learning how to exist within a community.

How to navigate friendships.

How to manage conflict.

How to understand fairness, responsibility, and accountability.

These are complicated lessons.

And learning them is not always comfortable.

But they are some of the most important lessons children will ever learn.