Keeping our math communities humming

In this post, Kara Imm shares a May 2020 interview with Kate Smallberg about how to transition our number strings … 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

The following post comes from Rafael Quintanilla, a Mathematics Instructional Coach for the Los Angeles Unified School District and a … More

Here’s a conversation between collaborators and friends Kara Imm (Co-Director, Math in the City) and Geoffrey Enriquez (Math Teacher, Vanguard … More

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

As a teacher in inclusive settings, number strings were a critical part of my daily mathematical work. Routines are highly … More

This post was co-created by Jesse Burkett, Ranona Bowers, and Adrian Sperduto — teachers in the Hazelwood School District and … More

This post is by reader and strings enthusiast Laura Bofferding, Assistant Professor, Purdue University I was first introduced to number … More

During the spring of the 2012-2013 school year Kara Imm and I were working with my 5th graders to help … More

I’m embarrassed to say this, I have a vivid memory of around my fourth year of teaching 5th grade 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

I recently worked with a 6th grade teacher, Miss T, as she led a string for the very first time. … More

A 5th grade teaching team I work with recently raised the issue of how to model the problem 1/2 x … More