Song Maker
Make and share a simple song on a colorful grid.
Explore
Learn tools
Interactive explainers and playgrounds that teach by doing.
6 tools
Desmos Graphing Calculator
A free graphing calculator that plots as you type.
Explained Visually
Interactive explanations of math and statistics ideas.
Toy Theater
Free interactive art, reading and math games for young kids.
The Evolution of Trust
An interactive guide to game theory and why we trust each other.
Seeing Theory
A visual introduction to probability and statistics.