Thinking Skills
Thinking Skills practice, one argument at a time.
Thinking Skills practice for NSW Selective and OC preparation can begin with a simple question: does the evidence really support the conclusion? Work through an example before trying your own question.
What MistakeBook offers
MistakeBook currently offers checked practice for selected Thinking Skills areas: argument flaws, synonyms, and main idea and conclusion. Hidden assumptions have analysis and explanation only. Spatial rotation, folding and complex image matrices are not supported.
01
Separate evidence from a claim
Mark what the passage tells you and what the speaker concludes. Then ask whether the conclusion reaches further than the evidence allows. Discussing that gap is more useful than memorising an option letter.
02
Read the whole question
Upload the full passage and every answer option. A missing sentence can change the logic. MistakeBook may withhold practice when a question is ambiguous or a candidate does not pass its checks; AI explanations still need a careful read.
03
Practise one kind of reasoning
Keep a short record of which step was difficult: finding the main conclusion, evaluating a sample or understanding a word in context. Revisit that skill with a different passage and compare the reasoning, not just the final answer.
Original MistakeBook example · No login needed
Does a small survey speak for everyone?
A student asks six friends from the chess club which lunchtime activity they prefer. All choose chess. The student concludes that chess is the favourite activity of the whole school. What is the weakness in this argument?
- Evidence: six friends who belong to the chess club prefer chess.
- Conclusion: the whole school prefers chess.
- The people asked share a relevant interest. Their answers may not represent students outside the club.
Try another: a library surveys only students borrowing novels, then concludes that everyone prefers fiction to non-fiction. Explain which students were left out and why that matters.
Questions parents ask
Does MistakeBook cover every Thinking Skills question?
No. It supports the selected areas listed above. It is not a complete Thinking Skills test bank, and it does not currently generate practice for hidden-assumption or spatial-reasoning questions.
Why discuss a wrong option?
Ask what made that option attractive and which sentence supports or contradicts it. This can reveal a reasoning step to practise. A skill label or AI guess should not be treated as proof of the child's thought process.
Explore another area
Maths practice
MistakeBook helps families review supported maths questions, including fractions, geometry and word problems. Upload a complete question to get an explanation and, when available, a short set of checked practice questions.
Explore practice & an example02Selective writing
Writing Studio offers six introductory lessons, draft writing or import, and AI learning feedback. It uses general writing methods in the context of public NSW Selective requirements. It does not provide official exam marks or predict placement outcomes.
Explore practice & an exampleOfficial exam information
Check the NSW Department of Education for current test information and official practice resources. MistakeBook is an independent learning tool and is not affiliated with the Department.