Turn mistakes into focused practice
Understand a question, find the skill to practise and keep a record of learning. Checked practice is available for supported skills.
Understand the skill to practise
See the skill behind a question, a checked explanation and possible reasons to discuss with your child. Maths support includes fractions, geometry and word problems. The Thinking Skills pilot covers argument flaws, synonyms and main ideas, with analysis and explanation for hidden assumptions.
Track practice over time
See first-answer accuracy, practice counts and delayed review evidence. Repeating a familiar question does not add new first-answer evidence. Mastery needs consistent performance across different questions, question types and days, including a successful review after at least a week.
Checked practice for supported skills
For supported skills, practice candidates pass answer and structure checks before becoming available. AI-generated candidates receive an independent model review. If checks disagree, the question can be saved for review without publishing unreliable practice.
Parent-friendly progress insights
See results grouped by specific skill, including skills not yet practised. Follow a recommendation to an available practice set or review a saved explanation. Where there are too few answers, the page says more evidence is needed.
Private learning profile
Uploaded questions stay private and are used only for your child's personal learning analysis and practice tracking. MistakeBook does not create a public question bank from family uploads. Each account builds a private learning profile for one family.
One-question learning loop
Instead of overwhelming worksheets, MistakeBook focuses on one wrong question at a time to encourage deeper learning. This keeps each review session small, focused, and easier for parents to follow. It also helps children slow down and understand the reason behind a mistake.
How MistakeBook works
From one complete question to checked explanations, practice and progress.
Upload one wrong question
Choose Maths or Thinking Skills and upload one complete question you have permission to use, including its passage, options and diagram where relevant.
Check the question together
Review the extracted question, answer and explanation. Discuss the possible mistake with your child before practising.
Practise the same concept
Complete a small set of checked questions for the same skill when reliable practice is available.
Progress is tracked over time
Parents can see first-answer accuracy, skill-level learning status, review recommendations and when more evidence is needed.
A parent dashboard that shows what to do next
MistakeBook brings uploads, weak skills, recent questions, and progress insights into one simple parent view.
Illustrative learning example
Child profile
Chloe
Year 5 | Selective exam preparation
Next recommended action
Next focus: Fraction of a quantity
More answers to different questions will help show how Chloe is progressing.
Practice sets
2
First-answer accuracy
50%
Skills tracked
2
Questions analysed
2
Skills to revisit
Fraction of a quantity
First-answer accuracy: 67%
Sample representativeness
First-answer accuracy: 33%
Recent wrong questions
Finding three quarters of a quantity
Fraction of a quantityUsing a group of friends to represent a whole school
Sample representativenessStart with one question
Upload a Maths or supported Thinking Skills question to review its explanation and see whether checked practice is available.
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.