Children should be led to make their own investigations and to draw their own inferences. They should be told as little as possible, and induced to discover as much as possible. -David Eugene Smith (1904) I will never forget the day I finally became a mathematician. Was it when I was placed in the […]

# Category: BlogPosts

A teacher recently asked me to co-plan a lesson with her and then co-teach it. She wanted to teacher scatterplots and found this activity, but she wanted my support in planning and teaching the lesson.: https://teacher.desmos.com/activitybuilder/custom/5ae8aa5436ae340a1d96ad4c We began by printing the Teacher Guide to see if the activity’s author provided any suggestions for pacing and […]

Take a moment to solve this problem using any method you wish… A farm has a total of 480 llamas and alpacas. of the number of llamas at the farm are equal to of the number of alpacas. How many more alpacas than llamas are there? I’ll wait. . . . . . Can I […]

How do your expectations influence the performance of your students? The answer may surprise you, and, like many influential scientific studies, it starts with some dumb rats and some smart rats. Bob Rosenthal, PhD, is an experimental psychologist has spent the last four decades researching how student performance might be influenced by our expectations. In […]

Every three years the OECD administers and publishes the Programme for International Student Assessment, better known as PISA, which evaluates 15 year-old students around the world to determine how well their education system has prepared them for life after compulsory schooling. This test is important because it allows the performance of educational systems to be […]

Today the topic was introduction to exponents. We talked about using tables to organize our thinking and to look for patterns. Using the table, we can show students exponents, what they mean, and how to show that . The patterns in the table show that . Repeat with a base of 6. We see that […]

I am often asked for advice on the best practices for providing math intervention for our struggling students. What curriculum? How long? How often? Which students? While these are great questions – and indeed we must improve the math intervention we provide our students – the best way to address math intervention is to do EVERYTHING […]

My claim: people who teach math should also do #RecreationalMath as a regular part of their lifestyle. Just like English teachers read/write recreationally or music teachers play their instrument on their own time at home…math teachers should engage in doing math on their own. — duane habecker (@dhabecker) April 8, 2022 Many years ago I […]

For many educators, word problems surface longstanding fears of mathematics and memories of traumatic childhood experiences in math class. As a result, we often see posters on classroom walls attempting to distill strategies for solving word problems into a collection of key words. Perhaps you have seen the thousands of key word posters on the […]

When I meet someone new at a party and we exchange the customary small talk (“What about this weather?” or “How about those Giants?”), inevitably the question of what I do for a living comes up. Even before I share that I have been a middle school math teacher for 25 years, I can pretty […]