Exploring Calculus with 3d printing

Last week we were exploring volumes of various solids in the calculus course I’m teaching my son. That subject is a great opportunity to use 3d printing to enhance the course. In fact, this old video from Brooklyn Tech about 3d printing was one of my first exposures to using 3d printing in math education: … Continue reading Exploring Calculus with 3d printing

Using 3d printing to explore some basic ideas from calculus.

A few days ago we did a short project with some shapes that the boys and I had made using the F3 program: Using 3d printing to talk math with kids My older son made a “twisted octahedron” based on one of the examples that comes with the program. When we talked about the shape … Continue reading Using 3d printing to explore some basic ideas from calculus.

*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

Exploring 3 intersecting cylinders with 3d printing

Calculating the volume of 3 intersecting cylinders is a classic calculus problem.  The 3 cylinder problem caught my attention a few years ago when Patrick Honner shared this video about the 3d printing lab at his high school: I wrote about my reaction to the video here: Learning from 3D Printing Today we used our … Continue reading Exploring 3 intersecting cylinders with 3d printing

Revisiting the angle sum arctan(1/2) + arctan(1/3)

Today we did a 3d printing project revisiting an angle sum that we’d looked at last week -> arctan(1/2) + arctan(1/3). We started by reviewing how to approach the sum using complex numbers: Next my older son explained a geometric way to approach the problem: Now we went to Mathematica to create the 4 triangles … Continue reading Revisiting the angle sum arctan(1/2) + arctan(1/3)