Open-source K-12 math knowledge graph: 674 concepts, 2,843 questions, mistakes traced back to primary school

aigclink · x · 2026-10-20

• GitHub project cn-math-taxonomy (1.3k stars) offers a curriculum-aligned knowledge-graph DAG for Chinese K-12 math: 674 concepts and 2,843 questions spanning PEP grades 1–9 plus required high school content, with adaptive placement diagnosis.
• On a wrong answer, it traces prerequisite edges from high school down to the exact primary-school concept and generates a grade-ordered learning path.
• Scope: only required high school content (PEP A, 2019); selective modules are excluded. Online demo and GitHub Pages mirror available.

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