What Marilyn Burns Do The Math Actually Looks Like in a Classroom

The Marilyn Burns Do The Math program isn't a curriculum you hand out and walk away from. It's a set of routines and lesson structures designed to get students reasoning through numbers instead of memorizing procedures. The core idea is that if kids can explain how they got an answer, they understand math. If they can't, they just memorized something they'll forget by Thursday. I spent about six years implementing this framework in third and fourth grade. It changed how my students thought about arithmetic, but it also exposed every gap in my own planning habits. Here's what actually works and where people tend to get stuck.

Getting Started With Marilyn Burns Do The Math

Before you touch any lesson materials, you need to understand the three-part lesson structure. Every lesson follows a launch-explore-share sequence. You introduce a problem without showing the method. Students work on it. Then you pull them together to discuss multiple solution paths. That's it. It sounds simple because it is simple. The difficulty comes from executing it well. The launch is where most teachers rush. You want to present the problem clearly and then step back. Don't rephrase it five times. Don't ask leading questions that hint at the method you want them to use. Say the problem, write it on the board, and let them sit with it for a full two minutes before anyone raises their hand. The silence feels uncomfortable at first. It will feel worse than it actually is. During the explore phase, circulate. Listen to what students are saying as they work. Note the different strategies you're hearing. This isn't about correcting mistakes in real time. It's about gathering the range of approaches so you can pick the right ones for the share phase later. I used to stop by and help kids who were stuck during this phase. That was a mistake. If you rescue them now, you rob the share phase of the discussion. Let them struggle productively.

The share phase is the heart of the lesson. You put two or three student strategies on the board and have the class compare them. Ask which one makes the most sense to them and why. Push them to evaluate the efficiency and accuracy of each method, not just find the right answer. This is where the actual learning happens. One thing nobody tells you about the Marilyn Burns Do The Math approach is that your students will resist it at first. They've been trained to expect the teacher to show them the steps. When you don't, they get anxious and performant. Some will say "I don't know how to do this" within the first thirty seconds. That's not a signal to help them. That's a signal to give them more time. I had a whole class of kids who refused to write down a single strategy during the first two weeks. By week four, they were arguing about which method was most efficient. The shift wasn't dramatic. It was gradual and mostly quiet.

Get the Full Details

Do The Math: Number Core WorkSpace by Marilyn Burns - Heinemann
Do The Math: Number Core WorkSpace by Marilyn Burns - Heinemann

Common Pitfalls and What to Do Instead

The biggest trap is trying to cover everything in one lesson. The Marilyn Burns Do The Math materials are dense. Each lesson contains multiple problem versions, extension activities, and assessment components. If you attempt to do it all, you'll end up rushing through the explore and share phases, which defeats the entire purpose. Pick one problem per lesson and go deep. You can always come back to the other versions later. Another issue is selecting the wrong strategies for the share phase. I learned this the hard way during a fractions unit. I chose two students' methods to compare on the board because they both arrived at the correct answer. One used a visual model and the other used a procedural algorithm. The class immediately gravitated toward the algorithm because it felt faster. The visual model got dismissed as "too slow" and we moved on. I hadn't framed the discussion correctly. I should have asked "Which method helps you understand what's happening with the numbers?" instead of letting efficiency be the sole criterion. From then on, I made sure to include at least one strategy that might look less efficient but reveals more structure. That decision changed how my students approached harder problems for the rest of the year. Assessment is another area where people get tripped up. The Marilyn Burns Do The Math program includes built-in assessments, but they're not quick checks. They're detailed observation rubrics that require you to track individual student thinking across multiple lessons. I found that keeping a simple notebook with one page per student and jotting down the strategies I observed them using during the explore phase was more useful than filling out the formal assessment forms. The formal ones took about twenty minutes per student and the notebook entries took about two minutes each while still giving me the same information.

There's also a limitation worth noting. This approach works beautifully for number sense, operations, and fractions. It struggles with geometry and measurement units that require procedural precision. My students could reason their way through addition and multiplication problems all day, but when we hit area and perimeter, some of them froze because there wasn't a clear "strategy" to debate. For those topics, I supplemented with direct instruction after the exploratory phase. The program doesn't address this gap explicitly, and that's a real bottleneck if you're using it as your only math resource. If you're looking for the materials, the Marilyn Burns Do The Math resources are available through the Marilyn Burns Education Foundation website and through various educational publishers. The full program requires a significant time investment to learn before you can teach it effectively. If you're just starting out, I'd recommend watching the demo lessons available online before ordering anything. Thirty minutes of video will save you a lot of frustration.