为什么值得关注

它将碎片化的课程标准转化为可连接的、机器可读的学习依赖关系图，支持自适应教育工具和学术研究。

适合谁使用

设计教学序列的教育工作者
课程开发者和政策制定者
构建个性化学习产品的教育科技团队
研究学习路径的教育研究者

典型使用场景

构建自适应辅导系统以追溯先修知识链
跨标准映射课程缺口
生成家长友好的领域摘要
分析主题中心性以优化教学优先级

项目优势

细粒度的微主题及掌握证据标准
3,221条带强弱标记和理由的先修依赖边
对齐NGSS、Common Core、英国国家课程等多个标准
开放的多许可数据集，在共享协议下可商用

使用前须知

仅覆盖小学阶段（4–11岁）
不含语义嵌入和用户数据
共享许可要求衍生数据库保持开放

README 快速开始

Marble Skill Taxonomy

An open, structured taxonomy of what children learn across the primary/elementary years — decomposed into fine-grained "micro-topics", wired into a prerequisite graph, and aligned to national curriculum standards. Produced by Marble.

Version: v1 · Topics: 1,590 · Prerequisite edges: 3,221 · Subjects: 8

See it

Every dot is a micro-topic, colored by subject; height is age; each thread is a prerequisite (full-quality video). Explore it interactively at withmarble.com/curriculum — tap any concept to trace everything a learner must master before it.

What this is

Most curriculum data is either a flat list of standards or locked inside a product. This dataset is a connected graph of learning:

1,590 micro-topics — a single, teachable idea (e.g. "Building sentences", "Apparent brightness of stars"), each with a plain-language description, mastery evidence criteria, a type (conceptual / procedural / representational / language / meta), a subject + domain, and an approximate age range.
3,221 prerequisite dependencies — a directed acyclic graph: "topic X depends on prerequisite Y", each edge tagged hard/soft and carrying a one-line reason.
Curriculum alignment — each micro-topic links to the standards it was distilled from (NGSS, Common Core, the UK National Curriculum, and more).
Domain clusters — 183 parent-friendly one-paragraph summaries per (subject, domain, age band).

Subjects

Subject	Topics
Science	547
Mathematics	503
English	286
History	90
Personal & Social Development	88
Life Skills	37
Computing	21
Learning to Learn	18

Files

All data lives in data/ as UTF-8 JSON. See schema/ for JSON Schemas and manifest.json for counts + SHA-256 checksums.

File	What it holds
`data/topics.json`	The micro-topics (graph nodes).
`data/dependencies.json`	Prerequisite edges (`topicId` depends on `prerequisiteId`).
`data/curriculum-standards.json`	The source curriculum standards, grouped by curriculum.
[`data/clusters.json`](data/clusters.jso

os-taxonomy