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For many NSW families, the OC test is not the end of the journey. It is often the first serious experience a child has with a competitive, timed, digital placement test.
Build on the reasoning skills your child has already developed — and start adding the writing, stamina and Year 6-level practice selective requires.
Once the OC test is finished, many parents naturally start asking the next question:
Should we start thinking about selective high school preparation?
The answer depends on your child, your family, and your goals. But if selective high school is even a possibility, it helps to understand what carries over from OC preparation — and what changes quite significantly.
The good news is that OC preparation builds many of the right foundations. The important thing is not to assume that selective is just “OC again, but harder”.
Selective preparation needs a broader plan.
Both the Opportunity Class Placement Test and the Selective High School Placement Test assess reasoning, problem-solving and academic potential. Both are computer-based NSW placement tests, and both include Reading, Mathematical Reasoning and Thinking Skills components.
But selective adds a fourth component: Writing.
That matters.
The selective test asks students to produce an original written response to a specific task. So while OC preparation can give your child a strong head start, selective preparation needs to add new skills, especially around writing, stamina, planning and longer test-day management.
A child who has prepared well for OC has already built many useful habits.
They may already know how to:
These habits are extremely valuable.
Selective preparation should not throw them away. It should build on them.
The selective test is a bigger step in four main ways.
This is the clearest difference. OC does not include a writing section. Selective does.
That means selective preparation needs to include regular writing practice, not just multiple-choice drills.
OC preparation focuses on skills up to Year 4. Selective preparation draws on concepts up to Year 6.
This does not mean selective is simply a school curriculum test. It still tests reasoning. But students are expected to reason with more advanced material, especially in mathematical reasoning and reading.
A child who did well in OC-style reasoning may still need time to grow into Year 6-level selective questions.
OC preparation often teaches children how to handle a short, focused test environment. Selective preparation needs to go further.
Selective high school entry often feels bigger to families because it affects high school placement. Good preparation should make the test feel less mysterious and more manageable — not turn every week into a family emergency.
| Area | OC preparation | Selective preparation |
|---|---|---|
| Reading | Shorter primary-level reading tasks | Longer, more demanding reading and inference |
| Mathematical Reasoning | Year 4-level reasoning | Year 6-level mathematical reasoning |
| Thinking Skills | Logic, patterns, deduction and reasoning | More advanced reasoning with stronger time pressure |
| Writing | Not tested | Tested through an original written response |
| Format | Digital placement test | Digital placement test |
| Practice goal | Build reasoning foundations and test familiarity | Build depth, stamina, writing skill and section balance |
Whether or not your child receives an OC offer, their preparation can tell you a lot. Look at timing, repeated errors, confidence, review habits and how they handled pressure.
After OC, students do not need to jump straight into heavy selective practice. But it is useful to keep reading comprehension, mental maths, logic, data interpretation and explanation review active.
Writing should not be treated as a final-month add-on. A small amount of regular writing practice is usually more useful than a sudden rush of full-length prompts close to the test.
Over time, practice should become more selective-specific: selective-style reading, mathematical reasoning, thinking skills, writing prompts, section tests and full simulations.
The exact schedule matters less than the rhythm: practise, review, adjust.
Selective preparation does not need to be confusing. OC Test Prep is expanding to help NSW families prepare for Reading, Mathematical Reasoning, Thinking Skills and Writing with realistic digital practice and parent-friendly guidance.
No. There is overlap, especially in Reading, Mathematical Reasoning and Thinking Skills, but selective also includes Writing. The selective test also draws on later primary school concepts than OC.
Yes. OC preparation can help build test familiarity, reasoning habits, screen confidence and time management. But selective preparation still needs additional work, especially writing and longer-section stamina.
It depends on the child. Many families benefit from starting gently after OC, then becoming more structured closer to Year 6. Writing should be introduced early in small, manageable pieces.
The biggest difference is Writing. OC has Reading, Mathematical Reasoning and Thinking Skills. Selective has those three areas plus Writing.
Often, yes. A short reset can be healthy. After that, light reading, maths reasoning, thinking skills and writing practice can help maintain momentum without creating pressure.
Not necessarily. Some families use tutoring, some use books, some use online practice, and many use a mix. What matters most is that students practise realistic question types, review mistakes properly, build writing skill, and learn how to manage the test format.
OC Test PrepOC Test Prep is the clearest and most effective way to prepare for the NSW OC Test. Built for parents and kids by parents and kids who care.
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