Course map
Choose your floor
K–12 builds the base; College goes deep; Exam prep folders curate skills for GED, SAT, and ACT. Every skill has an infinite problem bank and a Mastery Score target of 100.
K–12
Arithmetic through precalculus.
Arithmetic
Build speed and accuracy with the operations everything else rests on.
Pre-Algebra
Fractions, ratios, percents, and the language of variables.
Algebra
Equations, factoring, and the habits of algebraic thinking.
Geometry
Angles, area, and spatial reasoning with precise calculation.
Trigonometry
Right triangles, the unit circle, and the core trig toolkit.
Precalculus
Advanced algebra and trig as the bridge into calculus.
College
University-level practice tracks.
Calculus
Limits, derivatives, and integrals — practiced until automatic.
Multivariable Calculus
Partial derivatives, gradients, and higher-dimensional technique.
Linear Algebra
Matrices, determinants, and linear systems by hand.
Differential Equations
First-order methods and the models Diff EQ is built for.
Exam prep
Skill drills useful for GED, SAT, and ACT — not full practice tests.
GED Math Prep
Skill drills that show up on GED-style math — not a full practice test. Build fluency on numbers, fractions, percents, and linear basics.
SAT Math Prep
Core algebra, functions, and geometry skills useful for SAT Math. These are deliberate reps, not timed multi-paragraph exam clones.
ACT Math Prep
Algebra through trig skills that power ACT Math. Drill the underlying techniques — not official ACT wording or timed sections.