> ## Documentation Index
> Fetch the complete documentation index at: https://docs.learningcommons.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Introduction to shared relationship properties across Knowledge Graph edges, including edge structure and how relationships connect entities.

Knowledge Graph [entities](https://docs.learningcommons.org/knowledge-graph/understanding-knowledge-graph/core-concepts.md#entities) connect through [relationships](https://docs.learningcommons.org/knowledge-graph/understanding-knowledge-graph/core-concepts.md#relationships).

Thematically connected entities and relationships are grouped into categories like [standards](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards.md) and [learning components](https://docs.learningcommons.org/knowledge-graph/schema-reference/learning-components.md).

![Diagram of all Knowledge Graph entities and
relationships](https://mintcdn.com/czi-60a2a443/NrH8hs7ZKCb7FPqt/images/knowledge-graph/all-relationships.jpg?fit=max\&auto=format\&n=NrH8hs7ZKCb7FPqt\&q=85\&s=5793754261447e3a1f1eb1470d146e54)

## Entities by category

| Category | Entities |
| :- | :- |
| [**Standards**](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards.md) | [`StandardsFramework`](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards#standardsframework), [`StandardsFrameworkItem`](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards#standardsframeworkitem) |
| [**Learning components**](https://docs.learningcommons.org/knowledge-graph/schema-reference/learning-components.md) | [`LearningComponent`](https://docs.learningcommons.org/knowledge-graph/schema-reference/learning-components#learningcomponent) |
| [**Curriculum**](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum.md) | [`Course`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#course), [`LessonGrouping`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#lessongrouping), [`Lesson`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#lesson), [`Activity`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#activity), [`Assessment`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#assessment), [`Material`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#material), [`ClassroomMaterial`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#classroommaterial), [`GlossaryTerm`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#glossaryterm), [`InstructionalRoutine`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#instructionalroutine) |
| [**Instructional guidance**](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance.md) | [`LearnerModel`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#learnermodel), [`Factor`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#factor), [`Strategy`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#strategy), [`GuidanceFramework`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#guidanceframework), [`GuidanceFrameworkItem`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#guidanceframeworkitem) |

## Relationships by category

> [!NOTE]
>
> All relationships share [a common property
> set](https://docs.learningcommons.org/knowledge-graph/schema-reference/common-relationship-properties.md).

| Category | Relationships |
| :- | :- |
| [**Standards**](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards.md) | [`hasChild`](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards#haschild), [`supports`](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards#supports), [`hasEducationalAlignment`](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards#haseducationalalignment), [`hasStandardAlignment`](https://docs.learningcommons.org/knowledge-graph/schema-reference/standards#hasstandardalignment) |
| [**Learning components**](https://docs.learningcommons.org/knowledge-graph/schema-reference/learning-components.md) | [`supports`](https://docs.learningcommons.org/knowledge-graph/schema-reference/learning-components#supports) |
| [**Learning progressions**](https://docs.learningcommons.org/knowledge-graph/schema-reference/learning-progressions.md) | [`buildsTowards`](https://docs.learningcommons.org/knowledge-graph/schema-reference/learning-progressions#buildstowards), [`relatesTo`](https://docs.learningcommons.org/knowledge-graph/schema-reference/learning-progressions#relatesto) |
| [**Curriculum**](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum.md) | [`hasPart`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#haspart), [`hasEducationalAlignment`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#haseducationalalignment), [`usesRoutine`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#usesroutine), [`uses`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#uses), [`hasDependency`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#hasdependency), [`hasReference`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#hasreference), [`references`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#references), [`mutuallyExclusiveWith`](https://docs.learningcommons.org/knowledge-graph/schema-reference/curriculum#mutuallyexclusivewith) |
| [**Instructional guidance**](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance.md) | [`hasFactor`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#hasfactor), [`hasStrategy`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#hasstrategy), [`interactsWithFactor`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#interactswithfactor), [`targetsFactor`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#targetsfactor), [`relevantToStandard`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#relevanttostandard), [`hasChild`](https://docs.learningcommons.org/knowledge-graph/schema-reference/instructional-guidance#haschild) |

## Enums and formats

Controlled vocabularies used across the Knowledge Graph are documented in [Enums and formats](https://docs.learningcommons.org/knowledge-graph/schema-reference/enums-and-formats.md).

## Related topics

> [card] [Core concepts](https://docs.learningcommons.org/knowledge-graph/understanding-knowledge-graph/core-concepts.md)
>
> Learn how entities, relationships, and UUIDs structure Knowledge Graph
> datasets.

> [card] [Common relationship properties](https://docs.learningcommons.org/knowledge-graph/schema-reference/common-relationship-properties.md)
>
> Review the shared property set on every Knowledge Graph relationship.

> [card] [Enums and formats](https://docs.learningcommons.org/knowledge-graph/schema-reference/enums-and-formats.md)
>
> Look up controlled vocabularies used across Knowledge Graph entities and
> relationships.