NSW OC · Year 4

NSW Opportunity Class (OC) test: what it is, the format, and how to prepare

Opportunity classes are two-year (Year 5–6) classes for high-potential and gifted students inside selected NSW public primary schools. Parents apply at the end of Year 3 or the beginning of Year 4, and students sit the Opportunity Class Placement Test in Year 4 for placement the following year. Places are limited — around 1,840 across 89 classes statewide — so the test is genuinely competitive, and the placement score is used alongside the application to allocate offers.

The test is computer-based and has three sections, all multiple-choice. Reading has 14 questions in 40 minutes, but three of those questions have multiple parts, so students give about 33 answers; texts include fiction, non-fiction, poetry and magazine-style articles, and the multi-part items include a vocabulary cloze, sentence-insertion and matching short extracts to statements. Mathematical Reasoning has 35 questions in 40 minutes and Thinking Skills has 30 questions in 30 minutes. There is no writing task, no calculator, and the three sections are weighted equally.

What makes OC different from ordinary Year 4 schoolwork is not exotic content but depth: multi-step problems, reading between the lines, and reasoning items — deductions, assumptions, flaws in arguments, logic puzzles — that most nine- and ten-year-olds have simply never met. Familiarity with those question types, and with the on-screen formats, removes a lot of the surprise on the day.

The best preparation is steady rather than frantic: regular reading of varied texts with a few 'why' questions afterwards, mental maths fluency without a calculator, and short sessions on reasoning puzzles. Timed practice matters too — 40 questions in 40 minutes rewards pacing and the confidence to move on and come back. Practise the format, learn from every explanation, and keep it enjoyable; a stressed Year 4 student rarely performs at their best.

Try some sample questions

Original exam-style examples with worked explanations. Pick an option, then reveal the answer.

Sample question 1

Noah saves $3 every week. He already has $14. After how many weeks will he have exactly $50?

Sample question 2

Every dog at the park today was on a lead. Rex was not on a lead. What can we conclude?

Sample question 3

Priya turned the kite over and stared at it. The two sticks that formed the cross were not tied at the centre. The join was a hand's width too high, so the kite was top-heavy. She slid the crosspiece down and knotted it again, tightly this time. 'One more go,' she said.

Which word best describes Priya in this extract?

Frequently asked questions

When is the OC test sat, and for which year?

Students sit the Opportunity Class Placement Test in Year 4 (applications open at the end of Year 3 / start of Year 4) for entry to a Year 5 opportunity class the following year. It is a two-year program covering Years 5 and 6.

Is the OC test on paper or on a computer?

Computer-based. Students read texts on screen and enter all answers on the computer. All questions are multiple-choice, and some Reading questions have several parts (for example choosing a word for each gap).

Is there a writing section or a calculator?

No writing task, and calculators are not allowed in any section. The three sections — Reading, Mathematical Reasoning and Thinking Skills — are the whole test.

How is the OC test different from the Selective High School test?

The Selective test is sat in Year 6 for Year 7 entry and adds a writing task and longer sections. The OC test uses the same three multiple-choice section names but at a Year 4 level with fewer questions. Preparation habits carry over, but the content should be pitched younger.

Can practice guarantee an OC place?

No, and no honest provider should say otherwise. Places are limited and results depend on the child on the day. Practice builds familiarity with the formats, pacing under time, and reasoning skills — all real advantages — but not a promise.

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Also preparing for…

NSW Opportunity Class (OC) Test: Format, Sample Questions & How to Prepare