Day 2 with Michael Serra’s Patty Paper Geometry

I’m doing some work in Michael Serra’s Patty Paper Geometry book with my younger son over school break. Yesterday’s project was about finding angle bisectors and perpendicular bisectors using paper folding. Today he wanted to extend that work by finding incenters and circumcenters of triangles. He did the folding to find the circumcenter of a … Continue reading Day 2 with Michael Serra’s Patty Paper Geometry

A challenging, but fun, patty paper proof of the Pythagorean theorem

** I’m moving too slowly this morning and didn’t get a chance to edit this post before having to run the kids to various events. Sorry if the post is a bit sloppier than usual ** I was intending to do a project on the angle bisector theorem today, but when I opened up Patty … Continue reading A challenging, but fun, patty paper proof of the Pythagorean theorem

Inscribed and Circumscribed circles with Patty Paper Geometry

We tried another project from Patty Paper geometry today for our Family Math project. I can’t say enough good things about this book – studying geometry through folding is absolutely incredible. Here’s the book: There were two parts to our project today – studying a bit about the circumscribed circle and then the inscribed circle. … Continue reading Inscribed and Circumscribed circles with Patty Paper Geometry

Exploring triangle congruence with Patty Paper Geometry

I asked the kids what they wanted to do for our Family Math project today and they told me they’d like to do another project from Patty Paper Geometry: We found a neat way to explore triangle congruence in Chapter 8, so we dove into that project this morning. Here’s the introduction and a brief … Continue reading Exploring triangle congruence with Patty Paper Geometry

More Patty Paper geometry + another viral math problem

Earlier this week Michael Pershan was asked for ideas about how to introduce constructions. One suggestion was using patty paper: It has been a while since our first Patty Paper Geometry project, so I thought we’d give it another try 🙂 Flipping through the book last night I found a project in section 4.1 about … Continue reading More Patty Paper geometry + another viral math problem