Comparing a tetrahedron and a pyramid with theory and experiment

We’ve done a few projects on pyramids and tetrahedrons recently thanks to ideas from Alexander Bogomolny and Patrick Honner. Those projects are collected here: Studying Tetrahedrons and Pyrmaids One bit that remained open from the prior projects was sort of a visual curiosity. When you hold the zome Tetrahedron and zome Pyramid in your hand, … Continue reading Comparing a tetrahedron and a pyramid with theory and experiment

*Ten 3D Printing math projects to help students explore math

Yesterday I was able to watch the Global Math Project presentations (well, most of them) via the Facebook Live feed. Hopefully those videos will be preserved here: The Global Math Project’s Facebook page One tank that caught my eye was given by Henry Segerman. I’d guess that his work and Laura Taalman’s work account for … Continue reading *Ten 3D Printing math projects to help students explore math

Calculating the volume of our rhombic dodecahedron

Yesterday we did a fun project involving a rhombic dodecahedron: A project for kids inspired by Nassim Taleb and Alexander Bogomolny At the end of that project we were looking carefully at how you would find the volume of a rhombic dodecahedron in general. Today I wanted to move from the general case to the … Continue reading Calculating the volume of our rhombic dodecahedron

Looking at Dave Richeson’s “Euler’s Gem” book with kids

I stumbled on this book at Barnes & Noble last week: It is such a delightful read that I thought the kids might enjoy it, too, so I had them read the introduction (~10 pages). Here’s what they learned: Next we tried to calculate Euler’s formula for two simple shapes – a tetrahedron and a … Continue reading Looking at Dave Richeson’s “Euler’s Gem” book with kids

A short continued fraction project for kids

I woke up this morning to see another great discussion between Alexander Bogomolny and Nassim Taleb. The problem that started the discussion is here: and the mathematical point that caught my eye was the question -> which positive integers are close to being integer multiples of ? One possible approach to this question uses the … Continue reading A short continued fraction project for kids