What Great Teachers Do Differently

Two high school science teachers, Mr. Harris and Ms. Albright, have classrooms right next to each other. Their rooms are identical, they teach the same curriculum, and they have access to the same resources. Yet, walking down the hall on any given Tuesday, you can feel a difference. In Mr. Harris’s room, the air is thick with tension. Students are slumped in their chairs, eyes glazed over, a low hum of chatter always threatening to boil over into disruption. He spends most of his energy on classroom management, pleading for quiet, and threatening detentions. Just next door, in Ms. Albright’s room, the atmosphere is electric. Students are leaning forward, debating ideas, scribbling notes, and asking questions that push the boundaries of the lesson. The energy is focused, collaborative, and joyful. There’s no secret magic, no flashy technology, and no difference in the students walking through the door.

So what is it? What’s the variable that transforms one room into a holding pen and the other into a launchpad? The difference lies in how the material is taught. It is about the teacher. This exact puzzle—the subtle, almost invisible distinctions that create wildly different outcomes—captivated Todd Whitaker for years. As a former teacher and principal who went on to become a leading educational researcher and professor, he spent his career observing thousands of classrooms. He wasn't looking for grand, revolutionary teaching methods. Instead, he was fascinated by the small, consistent behaviors—the specific ways a teacher greets students at the door, phrases a question, or handles a minor disruption. Whitaker wrote this book to distill those thousands of hours of observation into a clear set of practices, revealing that the difference between a good teacher and a great one is a matter of deliberate, repeatable choices.

Module 1: The Foundation — Expectations and Intentionality

Great leaders, like great teachers, operate from a foundation of clear expectations. They don't just react to problems. They proactively build an environment where problems are less likely to occur. This starts with a critical shift in focus.

The first principle is that great leaders focus on expectations, not rules. Rules are about what not to do. They are reactive and focus on undesirable behavior. For example, a rule might be "No interrupting in meetings." An expectation, however, is about what to do. It’s proactive and guides people toward desirable behavior. The expectation might be, "We listen respectfully and wait for our turn to speak." Whitaker shows that the most effective teachers prioritize expectations. Good teachers focus on rules. The least effective teachers focus only on consequences. So what does this mean in a professional setting? It means defining the positive culture you want, not just listing the negative behaviors you want to avoid.

From this foundation, we see that every decision must be intentional. Great teachers don't let things happen by chance. They are purposeful in everything they do. If a lesson goes poorly, they don't blame the students. They ask, "What could I have done differently?" This is about taking ownership. It’s about seeing yourself as the primary variable for success. When a project misses its deadline, the great leader reflects on their own planning, communication, and support. Was the goal clear? Were the resources adequate? This intentionality prevents a culture of blame. It builds a culture of responsibility.

And here's the thing. This intentionality extends to every interaction. Whitaker suggests a powerful filter for decision-making. Before you act, ask yourself: "What will the best people think?" Your "best people" are your most responsible, positive, and high-performing team members. If you're considering a new policy, how will it land with them? Will it empower them or burden them? If you base your decisions on your best people, you elevate the standard for everyone. You stop managing to the lowest common denominator. Instead, you create a culture that your top performers want to be a part of. This simple question acts as a powerful guide. It ensures your actions align with the values you want to promote.