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IEO Preparation Guide: How to Score High in English Olympiad
A practical IEO preparation guide covering grammar, vocabulary, reading comprehension, and the Achievers Section — with a week-by-week study plan.
What the IEO tests
The International English Olympiad (IEO) is not a test of how much English grammar a student has memorised. It is a test of how well a student uses English — reading, writing, listening, and speaking in realistic contexts.
That distinction matters for preparation. Students who drill grammar rules in isolation often underperform students who read widely and write regularly.
Exam structure
| Section | Grades 1–4 | Grades 5–12 | |---|---|---| | Word & Structure Knowledge | 15 Qs | 20 Qs | | Reading | 10 Qs | 15 Qs | | Spoken & Written Expression | 10 Qs | 15 Qs | | Achievers Section | 5 Qs | 5 Qs | | Total | 40 Qs | 55 Qs |
Duration: 60 minutes. The IEO exam window runs November 2025 through February 2026.
Section-by-section guide
Word & Structure Knowledge (largest section)
This tests vocabulary, grammar, and sentence structure. Common question types:
- Fill in the blank (choose the correct word or phrase)
- Identify the error in a sentence
- Choose the word closest in meaning (synonyms) or opposite in meaning (antonyms)
- Rewrite the sentence in a different form (active/passive, direct/indirect speech)
What helps most: Reading English newspapers, novels, and non-fiction. When you encounter an unfamiliar word, look it up and use it in a sentence the same day.
Reading
A passage is given, followed by comprehension questions. The questions test:
- Factual recall (what the passage says)
- Inference (what the passage implies but doesn't state directly)
- Vocabulary in context (what a word means in this specific usage)
- Author's purpose or tone
What helps most: Reading passages in full before looking at the questions. Students who skim the passage and jump to questions spend more time rereading and miss inference clues.
Spoken & Written Expression
This section tests whether students understand how language is used in real communication — conversations, letters, stories, instructions. Common question types:
- Complete the dialogue
- Identify the appropriate response
- Sequence scrambled sentences
- Identify the purpose of a piece of writing
What helps most: Paying attention to why a sentence is written a particular way, not just what it says.
Achievers Section
Five questions, higher per-question marks. These test advanced grammar and vocabulary — things like subjunctive mood, complex clauses, nuanced vocabulary distinctions. Most students find this section hard. A score of 3/5 in this section is excellent and will significantly improve your rank.
Preparation mistakes
Drilling grammar rules without reading. Grammar rules stick best when they are encountered in real usage. Read first; study the rule behind what you noticed second.
Ignoring the Reading section. Many students spend preparation time on grammar and almost none on comprehension. At Grades 8–12, the Reading section is 15 questions — neglecting it is expensive.
Treating IEO preparation separately from school English. Everything in your English class — essays, grammar exercises, comprehension passages — is relevant IEO preparation. Use it.
6-week plan
Week 1: Take one full-length IEO mock. Identify which section scores lowest.
Weeks 2–3: Focused work on your weakest section. If it's Reading, read one passage daily and answer the questions before checking. If it's Word & Structure, do 20 minutes of targeted vocabulary work per day.
Week 4: Achievers Section practice. Aim for at least 2/5 correct on every attempt — most students start at 1/5.
Weeks 5–6: Two full-length mocks per week. Review every wrong answer with the explanation before moving on.
The IEO rewards consistent, wide reading over intense short-term cramming. Start early.
Ready to start practising?
One free exam per month — no credit card required.