Where Is Pythagoras Hiding?
Self-paced, English
Pythagoras is hiding on Samos. To find him, you derive the distance formula and the equation of a circle from his own theorem.
I create visual explanations, animations and interactive tools to help people make sense of math.
Finished pieces: explanations, games, products. Each one is built around a single idea.
Self-paced, English
Pythagoras is hiding on Samos. To find him, you derive the distance formula and the equation of a circle from his own theorem.
Browser game, English
Hexagon pieces fall into a well. Wherever three meet at a corner and one number is the sum of the other two, they vanish, and everything above falls, which can set off chains.
In development, Site in Portuguese
A mathematics learning platform for secondary school and university students, now being built around videos, worked exercises, animations and test simulations.
Illustrated PDF, 16 pages, English
A visual guide to understanding how new information changes probability.
Small explorations in mathematics, learning and play. Animations, interactive sketches and ideas in progress.

Ben is choosing an outfit for a date. How many different outfits can 4 T-shirts and 3 pairs of shorts make?
Watch the animation ↗
I’ve loved math since I was a kid, but I don’t think I really understood what it was until I started studying pure math in college. School had been pretty easy for me, so when things got harder, I realized the traditional ways of teaching weren’t really working for me anymore. I found myself getting lost in long lectures and chalkboards full of formulas.
I need to see math to understand it. You could call me a visual thinker. Back then, the resources I found online were a huge help, and they’ve had a big influence on what I make today.
Now I teach math using visual explanations, animations, and interactive tools that I create. Most of my ideas come from the things my students get stuck on and things I struggled with myself back then.