Math
Grab a graph and watch one number change another.
Functions and Calculus
- Functions You Can See (Beginner): Feed a machine numbers, drag lines and curves, and see how one quantity changes another.
Algebra and Numbers
- Algebra in Motion (Intermediate): Balance scales, undo steps and slide parabolas until equations solve themselves.
- Growth: Exponents and Logs (Intermediate): Watch doubling explode, run it backwards with half-life and count doublings with logs.
Probability and Statistics
- Probability by Simulation (Intermediate): Flip a thousand coins, grow trees of chance and design a game that is actually fair.
Linear Algebra
- Vectors and Matrices (Intermediate): Arrows that move things and matrices that bend the whole grid, built by hand.
Geometry and Trigonometry
- Shapes and Proof (Intermediate): Cut, slide and rearrange shapes until you can prove why the rules are true.
- Trig and Waves (Advanced): Spin the unit circle, watch sine cast its shadow and turn waves into sound.
Discrete Math
- Counting and Patterns (Intermediate): Count choices with trees, spot the rule in sequences and topple proofs like dominoes.
Lessons are interactive and need JavaScript. Turn it on to play them.