SOF IMO vs SilverZone iOM: which is harder for Class 4?
Same syllabus. Wildly different difficulty. Here's the data we couldn't find anywhere else.
Both exams claim to cover the same syllabus. In practice they're very different beasts.
The headline
Based on a difficulty score computed from 40+ past-year papers: SOF IMO = 26 (Moderate), SilverZone iOM = 34 (Hard).
Why iOM feels harder
- Reasoning-heavy: iOM has ~30% reasoning at every level. IMO Level 1 is 28%, Level 2 is ~0%.
- Weighted marks: iOM's Scholar's Zone is 4.5 marks per question. IMO Achiever's is 2. Higher stakes.
- Multi-part questions: iOM Scholar's questions stitch two topics together in one problem.
Full comparison with worked-example questions publishing shortly.
Common Questions
Is SOF IMO or SilverZone iOM harder for Class 4?
On a difficulty score computed from 40 or more past-year papers, SOF IMO scores 26 (Moderate) and SilverZone iOM scores 34 (Hard). SilverZone iOM is the tougher of the two for most Class 4 children.
Why does SilverZone iOM feel harder than SOF IMO?
Three reasons. It is reasoning-heavy at about 30% at every level, its Scholar's Zone questions are worth 4.5 marks each against SOF Achievers' 2, and its Scholar's questions stitch two topics together in one problem.
Do SOF IMO and SilverZone iOM cover the same syllabus?
Broadly yes. Both claim the same Class 4 syllabus, but in practice they are very different papers in difficulty, pace and how the marks are weighted.
Understanding first. Confidence next.
We teach every topic until it makes sense, then let your child practise it until it sticks. Start with a free diagnostic to see where they stand today.