---
license: cc-by-4.0
language:
  - en
pretty_name: Eedi Misconceptions Graph
tags:
  - education
  - mathematics
  - misconceptions
  - curriculum
  - edtech
size_categories:
  - 10K<n<100K
configs:
  - config_name: misconception-map
    data_files: data/misconception-map.csv
  - config_name: construct-map
    data_files: data/construct-map.csv
---

# Eedi Misconceptions Graph v1.0

A map of **mathematical misconceptions** and the **curriculum constructs** they appear in, released by [Eedi](https://www.eedi.com) under a CC BY 4.0 licence.

Eedi defines a *misconception* as a flawed conceptual structure, or a gap in conceptual understanding, that manifests as a systematic and predictable error pattern across problems involving the same mathematical concept. A *construct* is a small, specific element of mathematics — for example, "Order fractions with the same denominators".

On the Eedi platform, students answer multiple-choice Diagnostic Questions with one correct answer and three distractors. Each distractor is tagged with the misconception it reveals, and each question sits within a curriculum hierarchy. 

## Contents

| File | Rows | Description |
| --- | --- | --- |
| `data/misconception-map.csv` | 19,294 | Misconception ↔ construct edges, weighted, with the full topic hierarchy on each row |
| `data/construct-map.csv` | 2,258 | The construct catalogue and its subject → topic → sub-topic hierarchy |
| `docs/data-dictionary.md` | — | Field definitions, per-field statistics and samples |

Coverage: **8,117 misconceptions**, **2,258 constructs**, 236 sub-topics, 50 topics, 4 subjects (Number, Geometry and Measure, Algebra, Data and Statistics).

`misconception-map.csv` is an edge list over a bipartite graph of misconceptions and constructs. `PercentageMisconceptionExistsInThisConstruct` is the edge weight: the share of a misconception's taggings that fall in that construct. Weights for any single `MisconceptionId` sum to 100. A misconception confined to one area of mathematics has few, heavy edges; one that spans areas has many light ones — which is what makes cross-topic misconceptions findable.

Join the two files on `ConstructId`. Every `ConstructId` in the misconception map resolves to a row in the construct map, and every construct has at least one misconception. Field-by-field definitions are in [`docs/data-dictionary.md`](docs/data-dictionary.md).

### What is not included

The Diagnostic Questions themselves, their distractors, question images, and any student-level response data are **not** part of this release. No personal data is included.

## Licence

This work is licensed under a [Creative Commons Attribution 4.0 International Licence](https://creativecommons.org/licenses/by/4.0/) (CC BY 4.0).

[![CC BY 4.0](https://licensebuttons.net/l/by/4.0/88x31.png)](https://creativecommons.org/licenses/by/4.0/)

You are free to **share** (copy and redistribute in any medium or format) and **adapt** (remix, transform and build upon the material) for any purpose, including commercially — provided you meet the attribution condition below. The licence covers Eedi's copyright and its sui generis database rights in this material. It is irrevocable, and it does not grant any rights in Eedi's trade marks.

The material is offered as-is, without warranties of any kind.

The full licence text is in [`LICENSE`](LICENSE).

### Attribution

Credit the work like this:

> "Eedi Misconceptions Graph v1.0" by [Eedi](https://www.eedi.com), licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).

If you changed anything, say so — for example, "…, adapted from the original" or "…, filtered to Algebra constructs only". You may satisfy attribution by linking to this page.

Please do not imply that Eedi endorses you or your use of the data.

## Version

Version 1.0, created 2026 by Eedi. Eedi's taxonomy is maintained continuously, so identifiers and names can change between versions. Pin to a specific release rather than tracking the latest files if you need reproducibility.