Grade 9 Multi-Subject Error Book

Problem

For Grade 9 students, wrong questions are often treated as one-off corrections: after a test is marked, it is hard to know which topics keep causing errors or whether the root issue is concept, calculation, reading, memory, or application. Grade 9 Multi-Subject Error Book turns that process into a searchable, analyzable, and practice-oriented local record. It covers Chinese, Math, English, Physics, Chemistry, History, Moral Education and Law, and Geography, making it useful for targeted Zhongkao review rather than producing full mock exams.

How It Works

• Error entry: users can paste a clear photo of a question or type the question manually. The system extracts the content, estimates subject, topic, and error type, and writes structured records to error-log.json.
• Analysis: it groups errors by topic and five error types (concept, calculation, reading, memory, application), tracks mastery and trends, and flags repeated errors with repeat_count >= 2.
• Practice and planning: it generates basic, intermediate, and comprehensive practice around weak topics, can build weekly or pre-exam review plans, and adds Ebbinghaus-based review pacing, topic explanations, and problem-solving methods.
• Progress tracking: it produces text summaries and improvement comparisons based on logged errors and practice records, suitable for parent reporting.

Limits

It works best with clear images and Grade 9 content; blurry, reflective, or heavily scribbled photos need retaking or manual entry. Each analysis or practice session is limited to one subject, and all data is stored locally, so moving to another computer requires migration. It does not guarantee fully accurate topic matching and is not a replacement for teacher grading or instruction.