NSW Opportunity Class
(OC) Test Preparation
Complete OC test preparation for Year 4 students. Full mock tests, 1,400+ practice questions, Strategy Lab, Mental Maths drills, daily vocabulary, and revision on every mistake — all tailored for the OC test format and difficulty.
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Inside the OC Test
The OC test is computer-based and runs for 110 minutes across three sections. There is no writing component.
Mathematical Reasoning
35 questions • 40 minutes
Five answer options (A to E). Covers number, algebra, fractions, money, geometry, time, data and probability — calibrated for Year 4 level.
Thinking Skills
30 questions • 30 minutes
Four answer options (A to D). Covers deductive logic, conditional logic, arrangement puzzles, evaluating arguments, and spatial reasoning.
Reading
14 items • 40 minutes
Four answer options (A to D). Single prose extract, poetry comprehension, sentence-insertion cloze, and thematic 4-extract matching.
Important: The OC test does NOT have a writing component (unlike the NSW Selective High School test).
Built for the OC Test, Not Generic Test Prep
Every feature is tailored to the OC test format and Year 4 difficulty level.
Strategy Lab for OC
Named strategies that teach your child how to think through every OC question type — covering reading inference, mathematical reasoning, and thinking skills.
- Step-by-step worked examples for every OC strategy
- 5-stage mastery system with 80% accuracy gates
- Calibrated to Year 4 OC difficulty
Mental Maths for Speed
The OC test gives just over a minute per maths question. Build the mental calculation speed your child needs through daily timed drills.
- Named mental calculation strategies
- Timed drills (1, 2, 5 or 10 minute sessions)
- Speed and accuracy tracked separately
Daily Vocabulary
OC reading rewards strong vocabulary. Your child learns 10 new words every day with sentence practice and quizzes.
- 10 new words every day (never repeats)
- Personal vocabulary bank with mastery tracking
- Sentence writing and quiz reinforcement
Everything Else for OC Test Success
From daily practice to full mock tests, every feature is OC-tailored.
1,400+ OC Practice Questions
Reading, mathematical reasoning, and thinking skills questions calibrated to the real OC test format and Year 4 difficulty level.
Personalised Daily Study Plan
Every day we tell your child exactly what to practise based on their target OC test date and weak areas. No decision fatigue, just steady progress.
Full-Length OC Mock Tests
Computer-based mock tests that mirror the real OC test: 35 maths (A to E options), 30 thinking skills, 14 reading items, 110 minutes total. Section-level scoring.
Revision: Master Every Wrong Answer
Every wrong answer is saved. Re-attempt them anytime, practise similar questions on the same concept, and watch the "mastered" count rise.
Saved Questions & Practice Similar
Bookmark any tricky question and generate similar ones to practise the same concept. Build mastery, not memorisation.
Parent Dashboard
See exactly which OC topics your child is strong in and where they need more work. Topic and subtopic level analytics across every section.
OC Test vs Selective High School Test
Two different tests, different year groups, different formats.
| OC Test | Selective Test | |
|---|---|---|
| Sat by | Year 4 students | Year 6 students |
| For entry to | Year 5 OC class | Year 7 Selective HS |
| Total time | 110 minutes | 155 minutes |
| Sections | Maths, Thinking, Reading | Maths, Thinking, Reading, Writing |
| Maths options | A to E | A to E |
| Writing component | No | Yes (30 min) |
| Difficulty level | Year 4 (L2 to L4) | Year 6 (L4 to L5) |
| Places available | 1,840 across 89 schools | ~4,000 across ~50 schools |
| Format from 2026 | Computer-based, NSW only | Computer-based, NSW only |
Preparing for the Selective High School test instead?
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Start Free TrialFrequently Asked Questions
What is the NSW Opportunity Class (OC) test?
The NSW Opportunity Class Placement Test is a competitive entry test sat by Year 4 students for placement into Year 5 Opportunity Class programs in NSW public primary schools. Opportunity classes are dedicated programs for high potential and gifted students in Year 5 and 6. There are 1,840 places available across 89 opportunity classes in NSW.
Who can sit the OC test?
Students currently in Year 4 (or end of Year 3) can sit the OC test, for entry into Year 5 the following year. Students must be aged between 9 years 5 months and 11 years at the start of Year 5. Applicants can attend a NSW public school, non-government school, home study, interstate school, or overseas school, but families must be living in NSW by the start of the school year of entry.
When is the OC test held?
The OC test is typically held in May each year. From 2026 onwards, the test is only held in NSW — students who are overseas or interstate must return to NSW to sit the placement test. Specific dates are released each year by the NSW Department of Education.
What does the OC test cover?
The OC test has three sections: Mathematical Reasoning (35 questions, 40 minutes, A to E options), Thinking Skills (30 questions, 30 minutes, A to D options), and Reading (14 items, 40 minutes, A to D options). Total test time is 110 minutes. There is no writing component in the OC test.
Is the OC test computer-based?
Yes. From 2026 onwards, the OC test is computer-based. Students complete all sections on a computer at the test centre.
How is the OC test different from the Selective High School test?
The OC test is for Year 4 students entering Year 5, while the Selective test is for Year 6 students entering Year 7. The OC test has no writing section, uses A to E options for Maths (vs A to D for Selective), and the questions are calibrated for Year 4 difficulty (typically L2 to L3 level). Selective tests algebra, decimals, BODMAS and Pythagoras; OC does not.
How many places are available in OC classes?
There are 1,840 places available in Year 5 opportunity classes across 89 schools in NSW (57 metropolitan and 31 rural/regional), plus 100 places at Aurora College for rural and remote students. Applicants can list up to 4 school choices.
How should my child prepare for the OC test?
Effective OC preparation builds the foundations the test actually measures: mathematical reasoning (especially fractions, money problems, time, geometry), thinking skills (deductive logic, evaluating arguments, spatial reasoning) and reading (inference, poetry, sentence-insertion cloze, thematic matching). SelectiveGuru provides Strategy Lab for step-by-step concept mastery, Mental Maths drills, daily vocabulary, full mock tests on computer, and revision of every wrong answer — all tailored specifically for the OC test format and Year 4 difficulty level.