Learner Variability Navigator

Schema last updated January 28, 2026.

Overview

Learner Variability Navigator models grade- and subject-specific learner profiles, research-backed factors, and instructional strategies. StandardsFrameworkItem connection targets are defined in Academic Standards.

Entities

`LearnerModel`

Pairs of grades and academic subjects (e.g., math for grades 3-6, literacy for grades 4-6) For each LearnerModel, there’s a subset of relevant factors and strategies that help contextualize what’s important for student success for specific grade bands and subjects. The Knowledge Graph includes the following LearnerModels:

Math PK-2
Math 3-6
Math 7-10
Literacy PK-3
Literacy 4-6
Literacy 7-12
Portrait of a Learner PK-3
Portrait of a Learner 4-8
Portrait of a Learner 9-12

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
`content`	Materials that make up a learner model along with additional information (if available)	`String`	0..1
`description`	Description of the item	`String`	0..1
`gradeLevel`	Specifies the educational grade for which the curriculum component is intended	`Array of GradeLevelENUM`	0..n
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links	`String`	1
`license`	License document that applies to this content, typically indicated by URL	`String`	1
`name`	Name of the item	`String`	0..1
`provider`	Service provider, service operator, or service performer	`String`	1

`Factor`

Characteristic that influences learning or performance Factors span 2 categories:

Context (e.g., background, environment, access to resources, attention, working memory)
Skills (e.g., decoding, fluency, algebraic reasoning)

Factors may connect to other factors and can be linked to instructional strategies.

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
`category`	Grouping for factors within a LearnerModel	`String`	0..1
`citations`	References to research that supports the factor	`Array`	0..n
`content`	Materials that make up a factor along with additional information (if available)	`String`	0..1
`description`	Description of the item	`String`	0..1
`gradeLevel`	Specifies the educational grade for which the curriculum component is intended	`Array of GradeLevelENUM`	0..n
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links	`String`	1
`license`	License document that applies to this content, typically indicated by URL	`String`	1
`name`	Name of the item	`String`	0..1
`provider`	Service provider, service operator, or service performer	`String`	1

`Strategy`

The instructional best practices that support learning across the whole child framework Each of the research-backed approaches supports a variety of factors and learner models (e.g., the “peer teaching” strategy supports factors like math communication and long-term memory).

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
`category`	Grouping for strategies within a LearnerModel	`String`	0..1
`citations`	References to research that supports the strategy	`Array`	0..n
`content`	Materials that make up a strategy along with additional information (if available)	`String`	0..1
`description`	Description of the item	`String`	0..1
`gradeLevel`	Specifies the educational grade for which the curriculum component is intended	`Array of GradeLevelENUM`	0..n
`identifier`	Identifier of the item, either as textual strings or as URL (URI) links	`String`	1
`license`	License document that applies to this content, typically indicated by URL	`String`	1
`name`	Name of the item	`String`	0..1
`provider`	Service provider, service operator, or service performer	`String`	1

Relationships

`hasFactor`

Source node	Target node
`LearnerModel`	`Factor`

Relationship property	Description
`author`	Author of this content.
`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).
`dateCreated`	Date on which the element was created.
`dateModified`	Date on which the element 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 document that applies to this content, typically indicated by URL.
`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.
`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.

`hasStrategy`

Source node	Target node
`LearnerModel`	`Strategy`

Relationship property	Description
`author`	Author of this content.
`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).
`dateCreated`	Date on which the element was created.
`dateModified`	Date on which the element 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 document that applies to this content, typically indicated by URL.
`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.
`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.

`interactsWithFactor`

Source node	Target node
`Factor`	`Factor`

Relationship property	Description
`author`	Author of this content.
`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).
`dateCreated`	Date on which the element was created.
`dateModified`	Date on which the element 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 document that applies to this content, typically indicated by URL.
`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.
`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.

`targetsFactor`

Source node	Target node
`Strategy`	`Factor`

Relationship property	Description
`author`	Author of this content.
`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).
`dateCreated`	Date on which the element was created.
`dateModified`	Date on which the element 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 document that applies to this content, typically indicated by URL.
`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.
`connectionType`	Specifies whether the strategy supports or improves the target factor.
`factorCategory`	Category of the target factor.
`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.

`relevantToStandard`

Source node	Target node
`Factor`	`StandardsFrameworkItem`

Relationship property	Description
`author`	Author of this content.
`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).
`dateCreated`	Date on which the element was created.
`dateModified`	Date on which the element 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 document that applies to this content, typically indicated by URL.
`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.
`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.

Learner Variability Navigator

Schema release history

Date	Changed
January 28, 2026	Added `relevantToStandard` relationship.
December 8, 2025	First release.