IEO Class 12 syllabus
The IEO Class 12 syllabus for 2026-27, subject by subject: 26 topics to work through. On SkillStar, Class 12 children also get 6 mock tests marked instantly and sample papers to download.
- Class
- Class 12 (Grade 12)
- Syllabus years
- 2026-27
- Topics
- 26
- Mock tests
- 6
- Downloads
- 3
IEO Class 12 syllabus 2026-27
Word and Structure Knowledge
- Synonyms and Antonyms: Find words with the same or opposite meaning at a senior-school level, using context to choose the best word.
- One-Word Substitutes: Replace a phrase with a single precise word, such as a person who loves books or a speech without preparation.
- Idioms and Phrases: Learn common idioms and phrases and choose the one that fits a sentence.
- Phrasal Verbs: Understand verbs combined with prepositions or adverbs, such as give up, carry out and look into.
- Words Often Confused: Tell apart look-alike and sound-alike words such as affect and effect, or principal and principle.
- Tenses: Use present, past and future tenses, simple, continuous and perfect, correctly in sentences.
- Subject-Verb Agreement: Make verbs agree with their subjects, including collective nouns, either/or, and 'each' and 'every' subjects.
- Modals and Auxiliary Verbs: Use can, could, may, might, must, should, would and other modal verbs to express ability, permission, duty and possibility.
- Active and Passive Voice: Change sentences between active and passive voice across different tenses.
- Reported Speech: Change direct speech into indirect speech, adjusting tense, pronouns and time words.
- Articles and Determiners: Use a, an, the, some, any, much, many and other determiners correctly.
- Prepositions: Choose the right preposition for time, place, direction and fixed expressions.
- Conjunctions and Connectors: Join ideas using conjunctions and linking words such as although, unless, whereas and moreover.
- Clauses and Sentence Types: Recognise main and subordinate clauses and simple, compound and complex sentences.
- Error Spotting and Sentence Correction: Find and fix grammar, word-choice and punctuation errors in sentences.
Reading
- Factual and Informational Passages: Read factual, news and science-style passages and answer questions on facts, details and main ideas.
- Literary and Narrative Passages: Read stories, essays and poems and answer questions on theme, tone, characters and figures of speech.
- Inference and Author's Purpose: Work out what a passage suggests but does not say, and why the writer wrote it.
- Vocabulary in Context: Work out the meaning of words and phrases from the way they are used in a passage.
Spoken and Written Expression
- Dialogues and Conversations: Complete conversations by choosing the reply that fits the situation, mood and relationship of the speakers.
- Formal and Informal Expression: Choose the right level of language for letters, speeches and everyday situations.
- Sentence Completion and Ordering: Complete sentences and put jumbled parts in order so that the meaning is clear.
Achievers Section
- Higher Order Language Questions: Practise tougher questions that need careful reasoning with this class's vocabulary, grammar, reading and expression topics.
- Sentence Rearrangement: Arrange jumbled sentences into a logical paragraph.
- Analogies and Odd-One-Out: Find word relationships and spot the word that does not belong.
- Critical Reading and Logical Inference: Judge arguments, assumptions and conclusions in short passages.
About the IEO exam
How the exam works
Mode: Offline, objective multiple-choice paper held in school during school hours; each exam date has its own paper. · Levels: Level 1: Classes 1-12, held in the student's own school. Level 2: Classes 3-12 only; qualifiers are the class-wise top 5% internationally, the top 25 per zone per class, and school class toppers (where at least 10 students of that class sat the exam and the topper scored at least 50%). Level 1 questions are about 60% from the current class syllabus and 40% from the previous class; the Achievers Section and all of Level 2 use the current class syllabus only. · Duration: 60 minutes · Questions: Level 1: Classes 1-4 have 35 questions (Word and Structure Knowledge 15, Reading 10, Spoken and Written Expression 5, Achievers 5). Classes 5-12 have 50 (Word and Structure Knowledge 30, Reading 10, Spoken and Written Expression 5, Achievers 5). Level 2: Classes 3-4 have Word and Structure Knowledge 20 + Reading 10 + Achievers 5; Classes 5-12 have Word and Structure Knowledge 35 + Reading 10 + Achievers 5. · Marking: 1 mark per question except the Achievers Section: 2 marks each for Classes 1-4 (40 marks in total) and 3 marks each for Classes 5-12 (60 marks in total). SOF's published pattern does not mention negative marking. · Language: English
How to register
Only through the child's school: the school registers with SOF and sends the student forms, usually at least 30 days before its chosen exam date. Individual registrations are not accepted. Fee: Rs 170 per student per Olympiad incl. GST (India, Bhutan, Nepal), and schools may collect up to Rs 30 extra; US$11 elsewhere.
When it happens
Next Level 1 school dates: 17 November 2026. Earlier dates (30 September and 27 October 2026) have passed. Each school chooses one date; a future exam date does not mean registration is still open. SOF asks schools to submit registrations at least 30 days before their selected date. Level 2 is for qualifying Classes 3–12 only; SOF plans to announce the exact date by December 2026 and provisionally indicates the second or third Sunday of February 2027. This is tentative, not a confirmed exam date. Results are normally available within about 8 weeks. Status checked 1 November 2026; times are IST.
Official website, syllabus and sample papers
Links to the organiser's own pages. Past and sample papers are published there by the organiser.
IEO syllabus for other classes
IEO: guides for parents
- SOF Olympiads IMO, NSO and IEO: A Guide for Parents
How the SOF Maths, Science and English Olympiads work: classes, Level 1 and Level 2, the paper pattern, and a gentle way to help your child prepare.
6 min read
IEO Class 12: questions parents ask
- What is in the IEO Class 12 syllabus for 2026-27?
- 26 topics in Word and Structure Knowledge, Reading, Spoken and Written Expression and Achievers Section, laid out subject by subject on this page. On SkillStar your child can tick off each topic as they learn it.
- Are there IEO Class 12 mock tests on SkillStar?
- Yes, 6 mock tests. Each one is marked the moment your child finishes, with a question-by-question review, and can be taken again as often as they like.
- Can I download IEO Class 12 papers?
- Yes. The IEO Downloads tab on SkillStar has 3 files for this class.
- How does my child start IEO Class 12 practice?
- Sign up free as a parent, add your child with their class, and pick IEO from the exam list. Every new family gets welcome credits, lots of content costs nothing, and anything paid shows its price in credits before you decide.
- Is SkillStar the official IEO website?
- No. SkillStar is an independent practice platform and is not affiliated with, or endorsed by, the organisers of these exams. Exam names belong to their respective owners. Check dates, fees and registration with the IEO organisers.
SkillStar is an independent practice platform and is not affiliated with, or endorsed by, the organisers of these exams. Exam names belong to their respective owners.