SOF IEO Syllabus & Exam Pattern (Classes 1-6)

What is the SOF IEO?

The SOF International English Olympiad (IEO) is an annual English-language Olympiad conducted by the Science Olympiad Foundation, the same organisation that runs the IMO (Math), NSO (Science) and IGKO (General Knowledge). It's the most widely-taken English Olympiad in Indian schools, with over 30,000 schools and a few million students participating each year.

From Class 3 onwards, the exam has two levels: Level 1 (school-level, November-December) and Level 2 (international final, late January or early February). Classes 1 and 2 take only Level 1. Both levels are objective-type, with multiple-choice questions on OMR sheets.

Exam format, and how it changes by class

The IEO always has four sections, but the number of questions, the marks, and whether there's a Level 2 depend on your child's class. There are two patterns:

Time: 60 minutes. Multiple choice, 4 options, marked on an OMR sheet. No negative marking. Achievers questions are worth 2 marks each for Classes 1-4 and 3 marks each from Class 5. Only Classes 3-12 have a Level 2; Classes 1 and 2 take Level 1 only.

Class-by-class syllabus

The Section 1 (Word Power) topics escalate each year. Pick your child's class for its exact format and topic list:

Section 1: Word & Structure Knowledge

15 marks · ~38% of total · the single highest-weighted section

This is the "Word Power" section that parents and tutors most often refer to. It tests vocabulary, grammar, and structural knowledge, the building blocks of English. Most Class 3 IEO underperformance traces back to weak preparation here.

What it tests

Common pairs of words (synonyms, antonyms, homophones, homonyms), spellings, one-word substitutes, idioms, gender, number, articles, prepositions, conjunctions, and the simple present and past tenses. Questions are usually a single sentence with a blank to fill, or a single word with four possible matches.

Topics covered (Class 3)

Each link above goes to a free practice page with 5 IEO-style questions and full explanations.

Section 2: Reading

10 marks · 25% of total

Tests the ability to read short passages and extract information accurately. Class 3 passages are short, usually a paragraph or two, and drawn from stories, anecdotes, conversations, simple non-fiction (e.g. about animals or places), news-style snippets, and instructions or messages.

Question types

• "What is the main idea of the passage?"
• "Which of these statements is true based on the passage?"
• "What does the word ___ in line 3 most likely mean?"
• "Why did the character do ___?"

The key skill is reading carefully, not fast. Many Class 3 children skim, then guess. Building a habit of reading the question first, then scanning the passage for the specific answer, lifts this section's score reliably.

Section 3: Spoken & Written Expression

5 marks · ~13% of total

Tests everyday English usage, the kind your child would actually use to talk to people. Vocabulary, prepositions, conjunctions, and articles applied to real-life scenarios: introducing yourself, asking for directions, ordering food, making a phone call, writing a short message.

Question types

• "You are buying a notebook from a shop. Which sentence is the polite way to ask?"
• "Complete the conversation: A: 'Hello, may I speak to Riya?' B: ___"
• "Which sentence is correct?" (4 phrasings of the same idea)

Section 3 rewards children who hear and speak English naturally at home, but it's also the section most fixable through targeted practice. Common everyday idioms and polite phrasings recur in IEO papers year on year.

Section 4: Achievers Section (HOTS)

10 marks · 25% of total · Each question = 2 marks

This is the section that separates the top rankers. It's just 5 questions, but each is worth 2 marks, double a Section 1 question, so a single mistake costs twice as much, and the questions are the hardest on the paper.

The syllabus is the same as Sections 1-3, but the questions are Higher Order Thinking Skills (HOTS): they require combining two or three concepts, reasoning about shades of meaning, or picking the best answer when three options are partially correct.

Example of an Achievers-style question

Section 4 is where consistent daily practice separates medallists from the rest. There is no shortcut. Only varied exposure to harder questions builds the pattern-recognition this section rewards.

How to prepare for IEO Class 3

1. Start with Section 1. It's the most predictable section and the lowest-effort marks. Pick one topic from the list above and do 10 questions a day for two weeks.
2. Read 15 minutes a day. Any age-appropriate fiction works. Roald Dahl, Enid Blyton, Indian writers like Ruskin Bond. Reading is the single biggest input for both Section 2 and Section 4.
3. Do one full mock paper a week from October onwards. SOF publishes Class 3 sample papers free on their website (sofworld.org).
4. Add Achievers practice from December. Once Sections 1-3 feel comfortable, spend the final weeks on harder, Achievers-style questions. They carry double marks and are the hardest on the paper, so they often separate the top rankers.

Frequently asked questions