“The Size of the Chairs”

“The Size of the Chairs”

As hard as it is to believe, it’s already that time of year again—summer is here. Some of you have already finished the school year and are in vacation mode. Others of you, particularly our friends in the Northeast (making up for all those snow days) are likely...
When the Math Is What’s Exciting

When the Math Is What’s Exciting

I’ve been really lucky to spend time in a grade 1 classroom this spring, as they tackle the final number unit of the year. 1U7 is the culmination of students’ work with addition, subtraction, and place value. Building on the work of the earlier number units, it...
The Hard Work of Counting by Groups, Part 2

The Hard Work of Counting by Groups, Part 2

Last week, I wrote about some first graders’ work on problems about how many fingers were on 4 or 8 hands. This week, I want to share an interaction I had with one child, as the class’s work turned to thinking about groups of 10. Students were working on two types of...