## Cold snap

Below zero temperatures lead to comparisons of positive and negative numbers, and the solution to 4 – (-1).

How Many? An invitation to #unitchat## How Many? An invitation to #unitchat

Make math playful with a simple question that has uncountable answers.

Birthday Chocolate## Birthday Chocolate

A birthday present turns into a quick discussion of fraction division.

Images for counting and units## Images for counting and units

I wrote a blog post for the NCTM journal Teaching Children Mathematics. You should head over there to read it. Here are downloadable images to go along with it, which you are welcome to use in your home or...

What Math Looks Like## What Math Looks Like

A series of images argues that math is far more beautiful and creative than is represented to children and families.

Which One Doesn’t Belong? is in print!## Which One Doesn’t Belong? is in print!

I am delighted to announce that Which One Doesn't Belong? A Better Shapes Book is in print and shipping from Stenhouse Publishing this week. There is a student/home edition, and a set that includes a teacher guide. I'll be at Math On-A-Stick at the Minnesota...

Help wanted: Math On-A-Stick## Help wanted: Math On-A-Stick

We are almost ready for Year 2 of Math On-A-Stick at the Minnesota State Fair. Last year's favorites are back. We have a few delightful new exhibits. And we need help. The fair is a bit more than a week away, and we have several shifts that still...

On helping children to love math## On helping children to love math

What do you say when your child says they don't like math?