🧠 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 11 thinking course
Sets; relations/functions; sequences; permutations/combinations; probability; logic; limits intro (as appropriate).
Function transformations; combinatorics tree; 3D vectors/spatial axes.
Proof strategies; compound conditions; model real scenarios.
🪜 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.