Redesigning math communities for distance learning

About Kathy: Kathy Minas is a 5th grade teacher at a public school in Los Angeles. She is an enthusiastic mathematician … More

Prime Climb Number String

Last month, I worked in Andrew Eller’s amazing 4th grade classroom in Los Angeles that was beginning an exploration of … More

For several years, across various school communities, a teacher will tell me, “My kids don’t really have a strategy for … More

How are number strings designed? Typically, people tend to describe number strings as having the following structure Entry problem Helper … More

Here’s another important contribution from our friend and colleague Marcelle Good — a 6th grade teacher at School of the … More

Wondering what a number string looks like in a classroom? Curious about the details of the routine? The following video features … More

What’s the difference between a Number String and a Number Talk?

This post comes to us from strings enthusiast and middle school teacher Marcelle Good, who works at School of the … More

Lately, I’ve been seeing arrays everywhere I go: at the grocery store, at the pharmacy, at the farmers’ market. And, … More

Disequilibrium is Piaget’s term to describe when what a learner already knows comes into conflict with new information. Learners must … More

Students who are working to become efficient with fractions must learn to seek out “friendly” numbers — a shifting target … More

A few weeks ago our colleague and collaborator Pam Weber Harris led a really interesting numeracy workshop at Math in … More

When designing strings, there are typically one or more helper problems before a challenge problem. For example, you might start … More

We recently learned that the third grade team at Manhattan School for Children (Elizabeth Frankel-Rivera, Madelene Geswaldo, Alice Hsu and … More

After looking over beginning-of-the-year assessments, a new 4th grade teacher was concerned that half of her students were still unsure … More

We are often asked about how we can “stretch” strings beyond their place as a short mental math activity in … More