My colleague Kevin Lee spent his sabbatical at the laser cutter.

Here is the evidence. Dig it.

I got a few of my future elementary students on the same machine (with tremendous help and guidance from Kevin). They made the featured objects in the next video.

Common Core Math For Parents For Dummies—a handbook for curious parents and others—is out now! Priced at under $10 on Amazon.
The real Frustrated Parent has endorsed it. I am not making this up.

The Talking Math with Your Kids Store

You can buy tiling turtles, pattern machines and my book Common Core Math For Parents For Dummies, (with more items coming soon) at the Talking Math with Your Kids Store