Licenses and attribution

This public build contains a Mathematics-only projection of the Marble Skill Taxonomy (v1), © Generative Spark, Inc. (Marble), at the pinned Git commit. The original graph, topic names, descriptions and prerequisite reasons are authored by Marble. The resulting licensed graph is published as /assets/math-graph.json. It is a math-only subgraph, and relationships to other subjects are omitted. The diagnostic practice questions are separate original, unreviewed examples.

Marble Skill Taxonomy

Marble Skill Taxonomy v1 · © Generative Spark, Inc. (Marble) · withmarble.com · Source repository.

Database and relationships: Open Database License 1.0 (ODbL). Marble-authored topic descriptions and text: Creative Commons Attribution-ShareAlike 4.0. Reused or adapted material must preserve the relevant notices and share-alike obligations.

Upstream curriculum standards

Marble does not relicense third-party standards. This project intentionally presents only curriculum reference codes, not standard prose. Common Core, NGSS, UK National Curriculum and others have their own source terms; see Marble’s provenance and licensing notes. Do not assume commercial text redistribution rights.

Educational validity

Curriculum dependency links describe learning structure; they do not establish why any individual child got an answer wrong. The separate practice question bank has not received independent curriculum or accessibility approval. No subscription is active.