Maths + selected Thinking Skills · NSW exam preparation

Understand the question. Know what to practise.

AI explanations, skill-focused practice and learning records for Maths and selected Thinking Skills. Support your child’s NSW Selective, OC or scholarship preparation, one question at a time.

Analyse a question See an example

Worked example · Fractions

Question: What is 3/4 of 20? A child answers 5. Divide 20 by 4 to get one quarter (5), then multiply by 3 to get three quarters (15). Discuss whether the child stopped after the first step.

Try the skill

Try: What is 3/4 of 12? Answer: 9.

Apply the skill

Try: A box holds 24 apples. What is 5/8 of the box? Answer: 15 apples.

Discuss the idea

Review later: Explain why dividing by 4 alone only finds one quarter.

From one question to a focused next step

Upload one complete question, review the explanation together, then practise the skill when checked exercises are available.

Discover the skill to practise

Identify the skill behind a question and discuss possible mistakes with your child. A skill label alone does not tell us why they answered incorrectly.

Practise the right concept

For supported skills, get practice that targets the same concept and passes our checks. Some questions may have fewer exercises or an explanation only.

See your learning evidence

See first-answer accuracy across different practice questions, skills to revisit and where more evidence is needed.

Explore all features

Parent-friendly learning insights

See what your child has practised and what to revisit.

MistakeBook groups saved questions and practice results by skill. Use these records to choose a next step and discuss learning with your child.

Explore Maths and Thinking Skills

View specific skills separately by subject, including skills identified in uploads that have not been practised yet.

Count new answers fairly

Each distinct practice question counts once towards first-answer accuracy. Repeat practice is recorded separately.

Build focused practice habits

Start with one question and a short practice set. Revisit skills over time; learning status is a practice indicator, not an exam prediction.

Skill progress

Example parent dashboard preview

Illustrative data

Fraction of a quantity

First-answer accuracy: 67%

Needs more data

2 of 3 distinct questions correct on the first answer

Sample representativeness

First-answer accuracy: 33%

Needs more data

1 of 3 distinct questions correct on the first answer

These example results need more answers to different questions before showing a learning trend. An uploaded question alone is not evidence of mastery.

What you can use today

Maths

Analyse supported maths questions, review the answer and practise the same skill when exercises pass our checks.

Selected Thinking Skills

Argument flaws, synonyms and main ideas can have checked practice. Hidden assumptions currently have analysis and explanation only. Spatial puzzles are not supported yet.

Questions with diagrams

For supported diagram questions, practice may use a self-contained text question testing the same skill. We do not promise a new diagram for every upload.

Practice availability depends on the question and our checks. AI can still make mistakes, so review the answer and explanation together.

Use MistakeBook alongside your exam preparation. It is not a complete exam course or a score prediction.