🧠 Thinking Lab
Sharpen IQ, number sense, logic and everyday common sense, from Class 1 to Class 12. Fresh questions every time, two hints, a worked solution, and levels that adjust to you.
📘 Class 9 thinking course
Number systems; polynomials; coordinate geometry; linear equations; triangles; circles; statistics/probability.
Algebra tiles; geometric proof visualizer; 3D geometry.
Formal reasoning; pattern generalization; analyze assumptions.
🪜 How it works
Answer without help first.
Stuck? Open hint 1, then hint 2.
Every answer shows a worked solution.
Three right in a row moves you up a level; two wrong moves you down.
Pass the 10-question mastery test at Challenge level on two different days.