Marble releases open elementary taxonomy: 1,590 micro-topics in a prerequisite graph
tom_doerr · x · 2026-08-20
Marble has open-sourced the Marble Skill Taxonomy, structuring primary/elementary curriculum data into a connected graph.
Scale:
- 1,590 micro-topics, each representing a single teachable idea.
- 3,221 prerequisite edges defining dependencies between concepts.
- Covers 8 subjects, aligned with national curriculum standards.
Features & Use Cases:
- Each topic includes plain-language descriptions, mastery criteria, and types.
- Interactive visualization: tap any concept to trace the learning path.
- Addresses the issue of flat curriculum lists or proprietary data, providing a structured knowledge base for AI education applications.
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