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Algebra
4 apps to play — grouped by age.
🎒 Ages 9–14 · Grades 4–8
EquationQuest
Ages 11–13 · Gr 6–8 Level 3
See algebra stay balanced — solve for x on a balance scale, combine like terms with algebra tiles, spot the slip in a worked solution, and practice early algebra across 16 kits.
Play EquationQuest →
FunctionForge
Ages 12–13 · Gr 7–8 Level 4
Step into the function workshop: feed numbers into a machine, watch what comes out, and crack the hidden rule. Build y = mx + b on a coordinate grid to match a target line, read slope and intercept off a graph, and try the vertical line test — then practice functions, tables, expressions, and pre-algebra across 16 kits. On-device; works with the sound off.
Play FunctionForge →
🎓 Ages 15–18 · Grades 9–12
VectorForge
Ages 15–18 · Gr 9–12 Level 5
Linear algebra you can see, for ages 15–18. A 2×2 matrix is a transform of the plane — rotate, stretch, shear, reflect, flatten. Predict where a point lands, then watch the matrix move a shape: the determinant is how much it scales area, and the eigenvectors are the directions that don’t turn. It’s the on-ramp to the maths behind AI — a matrix is a neural layer. On-device, exact arithmetic.
Play VectorForge →
CalcQuest
Ages 15–18 · Gr 9–12 Level 5
Predict the limit, the slope, the area — then a real engine computes it and shows the rule. Precalc into calculus, made intuitive. For teens.
Play CalcQuest →