As a special Pi Day treat, I share my way to remember pi to 5 decimal places: a Pi Limerick! (Oh, and a video by Vi Hart – who has a beautiful voice!) Continue Reading →
Pi Day Videos – Song & Limerick
The Geometry behind Folding Fitted Sheets
I’m obsessed with folding fitted sheets. Maybe that’s because there’s so much geometry in it. After all I fitted sheet is a concave irregular dodecagon! Continue Reading →
5 Room House Puzzle
I worked on the 5 Room House Problem for more than 20 years. And yet I still assign it to students. It’s good for thinking and learning, and stating the problem. Continue Reading →
Variations on the Number 4
Here are some variations on the number 4. Some are nice, some are a little freaky. Continue Reading →
Making Sausage with Math
There’s math everywhere. Including processing a deer and making sausage! Continue Reading →
Math Branded Rhinestone Transfers
I’ve been wearing math bling t-shirts for a while now. And finally I’ve gotten with someone who can make them for everyone! Continue Reading →
Number Rings – Review and Free Worksheet Download
The Number Rings App for iPhone and iPad is simple – but its power to teach number sense is amazing. Continue Reading →
Math Dancing
Check out these math dancing programs, – and the Math Dance TEDx talk! Continue Reading →
Variations on the Number 3
Have you seen these variations on the number 3? There’re also a few facts about three! Continue Reading →
Geometry and Fractions for Breakfast
Check out how you can make a really cool breakfast treat and reinforce the concepts of geometry as well as fractions with your children. Continue Reading →