# withmarbleapp/os-taxonomy

Repository: https://github.com/withmarbleapp/os-taxonomy
Canonical: https://ross.abutalabs.com/products/os-taxonomy
Language: JavaScript
License: ODbL-1.0
License Family: other
Last push: 2026-07-08T14:18:23+00:00

## Health v2 (maintenance only)
Score: 54/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 91, release rhythm 35, longevity 4
- inputs: {"age_days": 56, "days_push": 56, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, young
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4115, forks 728 (observed 2026-08-28T04:08:35.758387+00:00)

## What it is
An open, structured dataset of what children learn in primary/elementary education, containing 1,590 micro-topics connected by 3,221 prerequisite edges as a directed acyclic graph. It aligns topics to national curriculum standards (NGSS, Common Core, UK National Curriculum) and is distributed as UTF-8 JSON files with schemas and checksums.

## Use cases
- build an adaptive learning app that sequences topics by prerequisites
- analyze curriculum standards across countries
- visualize a knowledge graph of elementary school subjects
- recommend what a child should learn next based on mastery
- map learning content to Common Core or NGSS standards
- research prerequisite structures in K-12 education

## When to choose
- you need structured, machine-readable curriculum data with prerequisite relationships
- you are building educational software for primary/elementary learners
- you want to align learning content to multiple national curriculum standards

## When to avoid
- you need curriculum data for secondary or higher education
- you need a ready-made learning management system rather than raw data
- you require per-student tracking or assessment features, which the dataset does not provide

## Facets
- artifact type: dataset
- maturity: active
- function: data-visualization, json
- domain: education, data-science
- platform: cross-platform
- tags: curriculum, learning-graph, prerequisite-graph, micro-topics, open-data, k-12, education-data

## Member repositories
- withmarbleapp/os-taxonomy (main) score 54

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:35.758387+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:23:10.105890+00:00, confidence not recorded.
  - readme: https://github.com/withmarbleapp/os-taxonomy (fetched 2026-08-28T04:08:35.758387+00:00, sha 7a37f5d4616b)
- Data as of 2026-08-30T08:39:29.467469+00:00.