Learning components

Schema last updated Nov 10, 2026.

Overview

Learning components entities and relationships are referenced in the Math learning components, ELA learning components, Eedi Misconceptions Graph, and New Meridian Mastery Statistics datasets.

Learning components are granular skills or concepts that break broad standards down into teachable and measurable parts.

Entities

`LearningComponent`

Single, well-defined skill or concept that students are expected to learn LearningComponents are granular units of learning used to describe instructional intent at the level of a Lesson, Activity, or Assessment. They are aligned to academic standards, support interoperability across curricula, and serve as the foundational building blocks for organizing content, tracking progress, and enabling personalized instruction.

Property	Description	Type	Cardinality
`academicSubject`	Academic subject	`AcademicSubjectENUM`	1
`attributionStatement`	Textual credit that acknowledges the source or creator of a work, included when required by the content’s license (e.g., Creative Commons BY); specifies how the creator should be attributed in accordance with the license terms	`String`	1
`author`	Author of content	`String`	1
`dateCreated`	Date the item was created	`Date`	0..1
`dateModified`	Date the item was most recently modified	`Date`	0..1
`description`	Description of the item	`String`	1
`examples`	Set of illustrative classroom scenarios showing how the skill is demonstrated; present on some Learning Components and not others	`Array`	0..n
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links	`String`	1
`inLanguage`	Language of the content	`LanguageENUM`	1
`license`	License that applies to this content, as a URL or a license name	`String`	1
`provider`	Service provider, service operator, or service performer	`String`	1

{
  "type": "node",
  "identifier": "0013fbee-3e76-500f-9978-42aa1a65f105",
  "labels": ["LearningComponent"],
  "properties": {
    "dateCreated": "2025-04-01",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license. Learning Commons received Learning Components under CC BY-4.0 from Achievement Network.",
    "dateModified": "2025-04-01",
    "description": "Use conversions to solve multi-step real-world problems",
    "identifier": "0013fbee-3e76-500f-9978-42aa1a65f105",
    "provider": "Learning Commons",
    "inLanguage": "en-US",
    "author": "Achievement Network",
    "academicSubject": "Mathematics"
  }
}

{
  "type": "node",
  "identifier": "0046446a-0a9b-5ace-92a3-23d4bb158c68",
  "labels": ["LearningComponent"],
  "properties": {
    "dateCreated": "2026-04-01",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license. ELA Learning Components are provided by Learning Commons under CC BY-4.0.",
    "dateModified": "2026-04-01",
    "description": "Identify the front cover of a book",
    "examples": [
      "The educator holds up a book closed. The student points to the front cover when asked, \"Can you show me the front of the book?\""
    ],
    "identifier": "0046446a-0a9b-5ace-92a3-23d4bb158c68",
    "provider": "Learning Commons",
    "inLanguage": "en-US",
    "author": "Learning Commons",
    "academicSubject": "English Language Arts"
  }
}

`Misconception`

A student’s incorrect conceptual or procedural understanding, stated as a short declarative sentence (e.g., “Believes all possible outcomes must have equal probability”) There is no error or misconception type property on the node. Every Misconception is a transferable misunderstanding — not a one-off mistake tied to a single question.

Property	Description	Type	Cardinality
`academicSubject`	Academic subject	`AcademicSubjectENUM`	1
`attributionStatement`	Textual credit that acknowledges the source or creator of a work, included when required by the content’s license (e.g., Creative Commons BY); the statement specifies how the creator should be attributed in accordance with the license terms.	`String`	1
`author`	Author of content	`String`	1
`description`	Description of the item	`String`	1
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links	`String`	1
`license`	License that applies to this content, as a URL or a license name	`String`	1
`provider`	Service provider, service operator, or service performer	`String`	1
`publisherIdentifier`	ID assigned by the original publisher	`String`	1

example.json

{
  "type": "node",
  "identifier": "22d0b676-6d07-5f86-b535-931fb4fa8cb8",
  "labels": ["Misconception"],
  "properties": {
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license. \"Eedi Diagnostic Graph\" by Eedi Ltd, licensed under CC BY 4.0. https://eedi.com",
    "description": "Believes all possible outcomes must have equal probability",
    "identifier": "22d0b676-6d07-5f86-b535-931fb4fa8cb8",
    "provider": "Learning Commons",
    "author": "Eedi",
    "academicSubject": "Mathematics",
    "publisherIdentifier": "12345"
  }
}

`Construct`

Granular math learning goal (e.g., “Calculate expected frequency”) Constructs are similar to Learning Components, but are a distinct entity type.

Property	Description	Type	Cardinality
`academicSubject`	Academic subject	`AcademicSubjectENUM`	1
`attributionStatement`	Textual credit that acknowledges the source or creator of a work, included when required by the content’s license (e.g., Creative Commons BY); the statement specifies how the creator should be attributed in accordance with the license terms.	`String`	1
`author`	Author of content	`String`	1
`description`	Description of the item	`String`	1
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links	`String`	1
`license`	License that applies to this content, as a URL or a license name	`String`	1
`provider`	Service provider, service operator, or service performer	`String`	1
`publisherIdentifier`	ID assigned by the original publisher	`String`	1

example.json

{
  "type": "node",
  "identifier": "69ae6203-2c47-5765-90b3-2d5a08304aee",
  "labels": ["Construct"],
  "properties": {
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license. \"Eedi Diagnostic Graph\" by Eedi Ltd, licensed under CC BY 4.0. https://eedi.com",
    "description": "Calculate expected frequency",
    "identifier": "69ae6203-2c47-5765-90b3-2d5a08304aee",
    "provider": "Learning Commons",
    "author": "Eedi",
    "academicSubject": "Mathematics",
    "publisherIdentifier": "67890"
  }
}

`MasteryThreshold`

How difficult a learning component or standard is to master, as the overall Math score where students start getting at least x% right (e.g. standard 6.G.A.4 has thresholds of 0.79 at 50% and 1.53 at 67%)

Threshold values are typically between -4.5 and 4.5. They are calculated for these expected scoring scenarios:

Scoring 50% - Basic mastery
Scoring 67% - Stronger mastery

Property	Description	Type	Cardinality
`alignedItemCount`	Number of assessment items aligned to the learning component or standard	`Integer`	1
`attributionStatement`	Attribution statement on the New Meridian mastery statistics dataset	`String`	1
`author`	New Meridian Corporation	`String`	1
`dateCreated`	Date the record was created	`Date`	1
`dateModified`	Date the record was last modified	`Date`	1
`gradeLevel`	Grade band the threshold was estimated in	Array of `GradeLevelENUM`	1..n
`identifier`	Unique identifier (UUID)	`String`	1
`license`	CC BY 4.0	`String`	1
`masteryThreshold50`	Theta at which a student is expected to score 50% on the aligned items, between −4.5 and 4.5	`Float`	1
`masteryThreshold67`	Theta at which a student is expected to score 67% on the aligned items, between −4.5 and 4.5	`Float`	1
`provider`	Learning Commons	`String`	1
`reliability50`	Classification accuracy of the 50% threshold, from 0 to 1	`Float`	1
`reliability67`	Classification accuracy of the 67% threshold, from 0 to 1	`Float`	1

example.json

// On a LearningComponent
{
  "identifier": "b62703bc-8ef4-524c-a9ba-c943bb196d65",
  "gradeLevel": ["6"],
  "alignedItemCount": 1,
  "masteryThreshold50": 2.7452,
  "masteryThreshold67": 3.179,
  "reliability50": 0.9692,
  "reliability67": 0.9688,
  "author": "New Meridian Corporation",
  "provider": "Learning Commons",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license, available at https://creativecommons.org/licenses/by/4.0. Learning Commons received the New Meridian mastery statistics under CC BY-4.0 from New Meridian Corporation.",
  "dateCreated": 2026-10-24,
  "dateModified": 2026-10-24
}

// On a StandardsFrameworkItem
{
  "identifier": "90cdf8ee-dc88-5bcb-9750-a13905fa3c96",
  "gradeLevel": ["5"],
  "alignedItemCount": 11,
  "masteryThreshold50": 0.2727,
  "masteryThreshold67": 0.8729,
  "reliability50": 0.856,
  "reliability67": 0.9058,
  "author": "New Meridian Corporation",
  "provider": "Learning Commons",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license, available at https://creativecommons.org/licenses/by/4.0. Learning Commons received the New Meridian mastery statistics under CC BY-4.0 from New Meridian Corporation.",
  "dateCreated": 2026-10-24,
  "dateModified": 2026-10-24
}

Relationships

There is no direct relationship between LearningComponents and Curriculum entities.To connect the 2 schemas, traverse through a shared StandardsFrameworkItem:

Curriculum entities align to standards through hasEducationalAlignment
Learning components align to standards through supports

`supports`

Links a LearningComponent to the StandardsFrameworkItem that it supports the understanding, mastery, or achievement of

Source node	Target node
`LearningComponent`	`StandardsFrameworkItem`

Property	Description
`attributionStatement`	Textual credit that acknowledges the source or creator of a work, included when required by the content’s license (e.g., Creative Commons BY)
`author`	Author of this content
`dateCreated`	Date the item was created
`dateModified`	Date the item was most recently modified
`description`	Description of the item
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links
`license`	License that applies to this content, as a URL or a license name
`provider`	Service provider, service operator, or service performer
`relationshipType`	Normalized value that defines the semantic meaning of the connection between the source and target entities (`supports`)
`sourceEntity`	Entity type from which the relationship originates (starting node in the connection)
`sourceEntityKey`	Source entity’s property that contains its unique identifier; used to locate and reference the entity in the dataset
`targetEntity`	Entity type to which the relationship points (ending node in the connection)
`targetEntityKey`	Target entity’s property that contains its unique identifier; used to locate and reference the entity in the dataset

{
  "type": "relationship",
  "identifier": "5befaad7-ec1d-5229-a71e-a97c6690f578",
  "label": "supports",
  "properties": {
    "dateCreated": "2025-10-21",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "targetEntity": "StandardsFrameworkItem",
    "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license. ELA Learning Components are provided by Learning Commons under CC BY-4.0. Learning Commons received state standards and written permission under CC BY-4.0 from 1EdTech.",
    "description": "A supports relationship links one entity to another, indicating that the first contributes to the understanding, mastery, or achievement of the goals defined by the second",
    "dateModified": "2025-10-21",
    "identifier": "5befaad7-ec1d-5229-a71e-a97c6690f578",
    "sourceEntity": "LearningComponent",
    "provider": "Learning Commons",
    "sourceEntityKey": "identifier",
    "author": "Achievement Network & Learning Commons",
    "relationshipType": "supports",
    "targetEntityKey": "caseIdentifierUUID"
  },
  "source_identifier": "0013fbee-3e76-500f-9978-42aa1a65f105",
  "source_labels": ["LearningComponent"],
  "target_identifier": "98d9b463-56bf-5710-9898-971b8a3c5155",
  "target_labels": ["StandardsFrameworkItem"]
}

{
  "type": "relationship",
  "identifier": "1945a29a-723d-589f-bd83-af69cf5c1955",
  "label": "supports",
  "properties": {
    "dateCreated": "2026-04-01",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "targetEntity": "StandardsFrameworkItem",
    "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license. ELA Learning Components are provided by Learning Commons under CC BY-4.0.",
    "description": "A supports relationship links one entity to another, indicating that the first contributes to the understanding, mastery, or achievement of the goals defined by the second",
    "dateModified": "2026-04-01",
    "identifier": "1945a29a-723d-589f-bd83-af69cf5c1955",
    "sourceEntity": "LearningComponent",
    "provider": "Learning Commons",
    "sourceEntityKey": "identifier",
    "author": "Learning Commons",
    "relationshipType": "supports",
    "targetEntityKey": "caseIdentifierUUID"
  },
  "source_identifier": "0046446a-0a9b-5ace-92a3-23d4bb158c68",
  "source_labels": ["LearningComponent"],
  "target_identifier": "<RF.K.1.A StandardsFrameworkItem identifier>",
  "target_labels": ["StandardsFrameworkItem"]
}

`hinders`

Source node	Target node
`Misconception`	`Construct`

Relationship property	Description
`attributionStatement`	Textual credit that acknowledges the source or creator of a work, included when required by the content’s license (e.g., Creative Commons BY).
`author`	Author of this content.
`description`	A hinders relationship indicates that a student holding the misconception is impeded in working correctly with the target construct.
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links.
`license`	License that applies to this content, as a URL or a license name.
`provider`	Service provider, service operator, or service performer.
`relationshipType`	Normalized value that defines the semantic meaning of the connection between the source and target entities (`hinders`).
`sourceEntity`	Type of entity from which the relationship originates; specifies the class or category of the starting node in the connection.
`sourceEntityKey`	Name of the property within the source entity that contains its unique identifier; used to locate and reference the entity in the dataset.
`targetEntity`	Type of entity to which the relationship points; specifies the class or category of the ending node in the connection.
`targetEntityKey`	Name of the property within the target entity that contains its unique identifier; used to locate and reference the entity in the dataset.

example.json

{
  "type": "relationship",
  "identifier": "dad4b363-34ec-5a9c-a1bc-03d74e31138c",
  "label": "hinders",
  "properties": {
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "targetEntity": "Construct",
    "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license. \"Eedi Diagnostic Graph\" by Eedi Ltd, licensed under CC BY 4.0. https://eedi.com",
    "description": "A hinders relationship indicates that a student holding the misconception is impeded in working correctly with the target construct",
    "identifier": "dad4b363-34ec-5a9c-a1bc-03d74e31138c",
    "sourceEntity": "Misconception",
    "provider": "Learning Commons",
    "sourceEntityKey": "identifier",
    "author": "Eedi",
    "relationshipType": "hinders",
    "targetEntityKey": "identifier"
  },
  "source_identifier": "22d0b676-6d07-5f86-b535-931fb4fa8cb8",
  "source_labels": ["Misconception"],
  "target_identifier": "69ae6203-2c47-5765-90b3-2d5a08304aee",
  "target_labels": ["Construct"]
}

`hasMasteryThreshold`

Links a learning component or Common Core math standard to the mastery threshold estimated for it (e.g. 6.G.A.4 → its threshold)

Source node	Target node
`LearningComponent`	`MasteryThreshold`
`StandardsFrameworkItem`	`MasteryThreshold`

Property	Description
`attributionStatement`	The attribution statement on the New Meridian mastery statistics dataset
`author`	New Meridian Corporation
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links
`license`	CC BY 4.0
`provider`	Learning Commons
`relationshipType`	Normalized value that defines the semantic meaning of the connection between the source and target entities (`hasMasteryThreshold`)
`sourceEntity`	Entity type from which the relationship originates (starting node in the connection)
`sourceEntityKey`	`identifier` when the source is a `LearningComponent`. `caseIdentifierUUID` when the source is a `StandardsFrameworkItem`.
`targetEntity`	Entity type to which the relationship points (ending node in the connection)
`targetEntityKey`	`identifier` on the target `MasteryThreshold`

example.json

{
  "identifier": "3eb0b55f-c025-56dd-956c-e6f6c468cc9e",
  "relationshipType": "hasMasteryThreshold",
  "sourceEntity": "LearningComponent",
  "sourceEntityKey": "identifier",
  "targetEntity": "MasteryThreshold",
  "targetEntityKey": "identifier",
  "author": "New Meridian Corporation",
  "provider": "Learning Commons",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license, available at https://creativecommons.org/licenses/by/4.0. Learning Commons received the New Meridian mastery statistics under CC BY-4.0 from New Meridian Corporation."
}

Schema release history

Date	Changed
Nov 10, 2026	Added `MasteryThreshold` entity Added `hasMasteryThreshold` relationship
May 27, 2026	Added `examples` as an optional `LearningComponent` property. Added Learning Components (K–2) to the dataset.
Sep 23, 2025	First release with Mathematics support

Math learning components dataset

Explore coverage, use cases, and download details for Math Learning Components.

ELA learning components dataset

Explore coverage, use cases, and download details for ELA Learning Components.

Eedi Misconceptions Graph dataset

Explore coverage, use cases, and download details for the Eedi Misconceptions Graph.

New Meridian mastery statistics dataset

Explore coverage, use cases, and download details for New Meridian Mastery Statistics.

Tutorial: Compare Common Core and state frameworks

Use Learning Components to analyze cross-state standards alignment.

Learning Components API endpoints

Query learning components by ID, subject, or standard via the REST API.

Standards schemas

See the standards that learning components support and align to.

Understanding Knowledge Graph

Getting Started

Using Knowledge Graph

Datasets

Schemas

Resources

Overview

Entities

`LearningComponent`

`Misconception`

`Construct`

`MasteryThreshold`

Relationships

`supports`

`hinders`

`hasMasteryThreshold`

Schema release history

Math learning components dataset

ELA learning components dataset

Eedi Misconceptions Graph dataset

New Meridian mastery statistics dataset

Tutorial: Compare Common Core and state frameworks

Learning Components API endpoints

Standards schemas

​Overview

​Entities

​LearningComponent

​Misconception

​Construct

​MasteryThreshold

​Relationships

​supports

​hinders

​hasMasteryThreshold

​Schema release history

​Related topics

Math learning components dataset

ELA learning components dataset

Eedi Misconceptions Graph dataset

New Meridian mastery statistics dataset

Tutorial: Compare Common Core and state frameworks

Learning Components API endpoints

Standards schemas

Overview

Entities

`LearningComponent`

`Misconception`

`Construct`

`MasteryThreshold`

Relationships

`supports`

`hinders`

`hasMasteryThreshold`

Schema release history

Related topics