Lessons
Interactive math lessons that live on the site itself — read the lesson, watch the diagrams drawn in chalk, grab the printable PDF, then practice what you've learned in the quiz.
Probability as counting outcomes, multi‑step experiments and tree diagrams, and the multiplication rule for experiments too big to draw.
ProbabilitySpace and dimensions, the Cartesian plane, points and their coordinates, line segments, and describing movement as a function.
GeometryWhat a function is — a rule turning an input into an output — through worked examples with numbers, shapes and colors, then domain and range.
FunctionsExponents as repeated multiplication — the notation, every power of 1 through 10 in one table, and the product rule bx+y = bx × by derived by hand.
Exponents