3 Series · 0 Levels · 0 Booklets
From counting to calculus, one level at a time.
The s-curve curriculum spans three series — elementary arithmetic, algebra, and advanced mathematics. Every level is sequenced so the next one feels earned.
How mastery is measured
Every level has a target range — not just an answer key. Progression is earned, not granted.
Accuracy threshold
Each booklet tracks correctness across every problem. 90% accuracy is required before the next level unlocks.
Standardised Completion Time
SCT is the target window of completion time per booklet. Finish inside the window and the skill is marked fluent, not just completed.
Gold-level mastery
Beat the fast SCT range for bonus XP and a gold mastery badge. Real rewards for real fluency.
Start at the foundation. Climb the curve.
0 booklets across 0 levels are live today. Pre-A Foundation is free to try — no card required.