Tricky Teens

Now that we’re moving into spring, I wanted to be sure my kindergarteners were beginning to gain a foundation for place…

Moving straight ahead

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

Dot Talk: Early Numeracy

This post is from Raquel Goya, a Kindergarten teacher at Hoover Elementary in Palo Alto, CA.  Raquel noted that, “Although…

Searching for Friendly Numbers

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

“Stack of Bills” string

Here’s a string I designed with a team of fifth grade teachers who were looking for creative ways to encourage…

Arrays on the West Side

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

The Power of Strings

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

Closed to Open Array

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