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

# Category: proportional reasoning

# Feet, inches and yards: Conversions on a ratio table

This post is from our friend and colleague Kathy Minas, a 4th grade teacher at PS 158, and an avid … More

# Video: Division on the open number line in fourth grade

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

# A “juicy” dilemma

This number string is inspired by an investigation (Comparing and Scaling, Investigation 1.2) from the Connected Math Project curriculum for … More

# So, what’s the story?

This number string attempts to do something a little different — it begins with the model (instead of the problem), … More

# Moving straight ahead

Those of you who are fans of the middle school curriculum Connected Math Project (CMP) will especially appreciate this string. … More