IMO, IEO, NSO or ICSO — Which Olympiads Should Your Child Attempt?
Registering for all four sounds ambitious, but spreading thin preparation across four papers rarely produces a rank in any of them.
Classes 1–4: pick two
IMO and IEO are the natural pair at this stage — both build skills that pay off across school subjects, and the papers are short.
Classes 5–8: pick two or three
Add NSO if your child enjoys science and diagrams. ICSO is a strong choice for students with regular computer access, because the competition is smaller and the syllabus is finite.
Classes 9–10: prioritise ruthlessly
Board pressure is real. Two olympiads prepared properly beat four attempted casually, and a rank in one subject carries more weight than four participation certificates.
WiseOwl OlympiadPrep is free for the first 3 days. After that, unlock lifetime access to unlimited tests for ₹399 per subject.
Classes 11–12: align practice with your stream
Choose subjects that reinforce your senior-secondary goals. Focused Maths, Science, English or Computer practice can sharpen competitive reasoning while supporting school and entrance preparation.
WiseOwl OlympiadPrep is free for the first 3 days. After that, unlock lifetime access to unlimited tests for ₹399 per subject.
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Access is free for the first 3 days. After that, unlock unlimited tests with instant answers and worked explanations for ₹399 per subject for lifetime access.
Keep reading
- Olympiad-Style Preparation: A Practical Guide for Parents (Classes 1–12)
How parents can plan challenging Maths, English, Science and Computer practice at home—timelines, routines and mock tests.
- Olympiad Coaching vs Self-Study: What Actually Improves Your Child's Rank
An honest comparison of olympiad tuition classes and structured self-study at home, with cost, time and outcome trade-offs.
- IMO Maths Olympiad: Class-Wise Strategy for Classes 1 to 12
Section-by-section IMO strategy — logical reasoning, mathematical reasoning, everyday mathematics and the Achievers Section.