The Blueprint of Belonging: People, Parts, and Interactions

Just Do It

The Challenge of Siloed Teaching

Every teacher knows the feeling: the door closes, and suddenly you’re on your own. You plan your lessons, manage the classroom, handle parent questions, and track student progress, behaviors, and differentiation—all within the four walls of your room. Alone.

This siloed model has been the default in schools for decades. It’s how we learned as students. It’s what we were trained to do in teachers’ college. It’s efficient on paper and for administrative scheduling. But in practice, it often leaves teachers stretched thin and students seen only through a single adult’s eyes. The truth is, no one teacher can possibly hold the whole picture of a child—or the full responsibility for a class.

It’s also one of the reasons why, in my opinion, approximately 16–18% of teachers in the U.S. change schools or leave the profession each year (source: National Education Association Today). Every time a teacher walks away, students lose continuity, relationships fracture, and colleagues are left scrambling to cover the gaps. As the revolving door spins, and instead of building momentum, schools are end up in survival mode.

So what’s the alternative?

Why Learning Communities?

Learning communities buffer that instability—so that even when individuals come and go, students are still known, supported, and carried forward by a team because so many advocates who truly know them remain in the building.

For regular readers, this sounds familiar—but it’s worth repeating. A learning community flips the script. Instead of “my students” and “my classroom,” a team of educators shares collective responsibility for an entire grade level.

That means:

• Students are visible to many eyes.

• Teachers share the workload—and the wisdom.

• Ideas and care multiply across the team.

The promise of learning communities is simple: when teachers collaborate deeply, every student benefits. But collaboration doesn’t happen by accident and it's not magic. It needs a framework.

How PPI Creates Foundation

With my blue sky thinking partners at the Western Academy of Beijing (WAB), we enrolled in one of Harvard’s Project Zero course. During this study, we encountered the People, Parts, and Interactions (PPI) thinking routine—a method for making visible what enables a system to function. We thought this would be a great tool to help communicate the concept of learning communities to the unknowing.

Seven years later, I’m still using that routine in my own work, breaking down all the components of a learning community and focusing on how they look different than in a traditional single silo school setting. Here’s how I use it to unpack the model:

• People: the human core: teachers, instructional assistants, counselors, specialists, support staff, administrators, and, of course, students.

• Parts: the structures that hold things together: schedules, shared language, protocols, and meeting designations.

• Interactions: the glue: the communication, agreements, and collaboration that bring the people and parts to life.

  
  

The power of using the PPI thinking routine is that it helps your team step back and ask: Do we have the right people in the room? Do we have the structures to support them? And are we interacting in ways that keep every student in sight?

Grade-Level Teams as a Starting Point

Instead of diving into a whole-school redesign, start where it’s most natural: grade-level teams. These teachers already share the same students, often have overlapping schedules, and usually collaborate on unit planning. That makes them the easiest place to begin testing the learning community model.

Decision-Making Made Visible

Once you’ve started, roadblocks will come. The key is to sort challenges into People, Parts, or Interactions.

• People – Do we need more trust, buy-in, or capacity?

• Parts – Do we need clearer schedules, planning time, or shared tools?

• Interactions – Do we need better agreements, norms, or ways to keep students visible?

  
  

When you frame challenges this way, decisions become sharper and teams avoid spinning in frustration.

Just Do It

The most important thing? Don’t wait for the perfect plan or the perfect conditions. Start small, start with your people, and let the parts and interactions evolve. A learning community grows by doing—not by drafting. The only wrong move is staying in silos.

Next Steps

Mapping out a learning community isn’t about piling more work onto teachers—it’s about shifting the frame: from individual silos to shared ecosystems. Start small with your team, use the PPI routine to guide decisions and lean into the “just do it” mindset.

What matters most is momentum. The sooner you try, the sooner your students experience the power of being seen by many eyes, not just one.

Next week, I’ll zoom in on the people of learning communities—the heart of the system—and explore how trust and teacher capacity become the foundation for everything else.