Selective School Thinking Skills Practice

The Thinking Skills section of the NSW Selective High School Placement Test is 40 minutes for 40 multiple-choice questions (four options each) that test critical thinking, logical deduction and problem solving — not school content — so the most effective practice is repeated exposure to its specific question types under timing until a student recognises each one on sight. Because nothing in a normal Year 6 classroom looks quite like these questions, familiarity is the single biggest lever you can pull.

Last verified: June 2026 against official sources (nap.edu.au, education.nsw.gov.au, ACER). Individual school dates, fees and cut-off scores change every year and vary by school — always confirm with the specific school or official body before you rely on a date.

Where thinking skills sits in the selective test

The NSW Selective High School Placement Test has four parts — reading, mathematical reasoning, thinking skills and writing — all sat on a computer. Thinking Skills is the part that surprises most families, because it does not reward knowing more maths or reading faster; it rewards thinking clearly about the structure of an argument or a puzzle. For the full test structure, see our NSW selective test preparation guide.

The main question types

Almost every Thinking Skills question is a variation on a small number of reasoning patterns. Learning to name the pattern is half the battle.

Drawing conclusions

You are given a short passage of facts and asked which statement must be true. The trap is choosing something that is probably true or sounds reasonable but is not actually guaranteed by the information given. The skill is separating what must follow from what merely could.

Identifying assumptions

An argument reaches a conclusion, and you are asked which unstated assumption it depends on. These questions reward spotting the hidden step — the thing the argument needs to be true but never says.

Spotting flawed reasoning

You are shown an argument and asked what is wrong with it, or which other argument makes the same mistake. Common flaws include confusing cause with correlation, over-generalising from one example, and circular reasoning.

Logic puzzles and deductions

A set of clues about people, objects or order, and a question that can be answered by working through them systematically. Speed comes from a tidy method — a small grid or list — rather than holding everything in your head.

Interpreting information

Short data, rules or scenarios where you apply a condition correctly. The difficulty is precision: words like “only”, “all”, “at least” and “unless” change the answer entirely.

How to practise effectively

The goal is not to grind hundreds of random questions; it is to build recognition. A focused routine works better:

1. Learn the types first. Spend the early sessions naming each question type and understanding what it asks, untimed.
2. Drill one type at a time. Do a small set of, say, assumption questions, then review every one — including the questions you got right but were unsure about.
3. Review the wrong answers, not just the right one. For each error, identify why the tempting wrong option was tempting. That is where the learning is.
4. Then mix and add the clock. Once recognition is solid, do mixed timed sets at one minute per question so pace becomes automatic.
5. Teach skip-and-return. No single question should swallow three minutes. Flag it, move on, come back.

Common mistakes

Two errors cost the most marks. The first is reading too fast and answering the question you expected rather than the one asked — Thinking Skills questions are written to punish skimming. The second is over-thinking: choosing an elaborate answer when a plain one is correct. Train your child to read precisely and trust a clean deduction.

The reasoning Thinking Skills demands overlaps heavily with general ability testing and with competition maths. See our general ability (GA) test practice guide for related question types, and use a free diagnostic to find which reasoning patterns your child finds hardest.

Frequently asked questions