Classroom Decorations

Studies in classroom management (Wong & Wong; Marzano; Emmer & Evertson) show that students follow rules best when there are 3–5 broad, clearly explained rules. Long, specific lists invite loopholes, while broad rules set culture and cover many situations. Pairing each rule with a short rationale builds student buy-in and consistency.

Research shows that consequences work best when they are clear, consistent, and predictable. A tiered system of escalating responses (warning → loss of privilege → parent involvement) is supported by classroom management studies. The most effective approaches pair fair consequences with positive reinforcement and, when needed, restorative practices.

This “Invisible Math” poster is a lifesaver for catching common student mistakes. It reminds students that math often has “hidden rules” like invisible coefficients, exponents, or denominators. Having these rules visible helps students explain their thinking more clearly and avoid errors when solving equations.

The “Curve of Forgetting” reminds us that true learning takes time, forgetting, and repeated practice. Research by Hermann Ebbinghaus shows that knowledge quickly fades without review—but each time students revisit material, the forgetting slows down. This poster helps both teachers and students see why spaced repetition, exit tickets, and retrieval practice are essential for long-term understanding.

This colorful poster gives students quick, easy-to-follow rules for divisibility from 2–10, with clear step-by-step examples. A great visual reminder to help cut down on errors and build number sense.

Researchers have found that words like likely, maybe, or rarely mean very different things to different people. This chart (from the Journal of Science Communication – SISSA) shows how people map common probability phrases to numbers. For example, “likely” averages around 75%, while “maybe” centers near 41%. Notice the wide ranges—“possible” can mean anywhere from 22% to 70%! This shows why clear numbers are often better than words when we want precise communication.

This comic (from Reddit) shows the trap many students fall into—procrastinating all week, then cramming the night before a test. Even if it feels like “following a study schedule,” last-minute studying is far less effective than consistent practice and review over time.

This classic xkcd comic jokes that every field is just “applied” to the one before it—until you get to mathematics, standing apart as the purest foundation of them all. A fun reminder of why math really is the language of science.

This comic from the now-offline abstrusegoose.com illustrates Paul Halmos’s famous advice: “Don’t just read it; fight it!” Math isn’t a spectator sport—you have to wrestle with problems, make mistakes, and actively engage if you want to truly understand.