> ## 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. # Learner Variability Navigator > Reference for the Learner Variability Navigator (LVN) dataset in Knowledge Graph: learner models, factors, and strategies that connect student context and learning goals to instructional practices. export const GatedCallout = ({children}) =>
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; [Schema last updated January 28, 2025.](#schema-release-history) Access to this resource is restricted and requires prior approval. In some cases, a license may also be required. Contact [support@learningcommons.org ↗](mailto:support@learningcommons.org) for information about access and eligibility. ## Overview The Learner Variability Navigator dataset (LVN) helps scale the impact of learning science by making connections between student context and learning goals to recommend instructional practices likely to help a given student reach a specific goal. We’ve included 3 core concepts from the [Learner Variability Tool from Digital Promise](https://lvp.digitalpromiseglobal.org/) ↗. ### Learner models Learner models are grade- and subject-specific models (e.g., math for grades 3–6 or literacy for grades 4–6). Each learner model connects student context and learning goals with instructional strategies. They help identify what supports student success for specific subjects and grade bands. ### Factors These are research-backed elements that influence learning across different learner models. These factors include: * Learner background (including physical well-being) * Self-management and interpersonal skills (such as self-regulation) * Cognitive processes (like long-term memory) * Subject-specific skills (like geometric reasoning) ### Strategies Strategies are instructional practices that support learning across these factors. Each strategy is supported by research and applies to multiple factors and learner models. For example, the peer teaching strategy supports factors like math communication and long-term memory.  ## Data relationship diagram Data model diagram: Learner Variability Navigator (LVN) entities—LearnerModel, Factor, Strategy—and their connections for linking student context and learning goals to instructional practices The diagram shows only the **Learner Variability Navigator (LVN)** dataset. `relevantToStandard` links to `StandardsFrameworkItem`, which is defined in [Academic standards](/knowledge-graph/entity-and-relationship-reference/academic-standards). **Example (Math 3–6):** A **LearnerModel** is a grade-and-subject profile—e.g. *Math 3-6*. It hasFactor (e.g. *Working memory*, *Long-term memory*, *Math communication*) and hasStrategy (e.g. *Peer teaching*, *Visual aids*). A **Factor** can interactWithFactor another (e.g. working memory ↔ attention). A **Strategy** targetsFactor one or more factors (e.g. *Peer teaching* targetsFactor *Math communication* and *Long-term memory*). A **Factor** can be relevantToStandard a `StandardsFrameworkItem` (e.g. *Algebraic reasoning* relevant to 6.EE.A.2). So the diagram connects learner context and standards to instructional strategies. **Edge list (source → relationship → target):** * `LearnerModel` → `hasFactor` → `Factor` (e.g. Math 3-6 → Working memory) * `LearnerModel` → `hasStrategy` → `Strategy` (e.g. Math 3-6 → Peer teaching) * `Factor` → `interactsWithFactor` → `Factor` (e.g. Working memory ↔ Attention) * `Strategy` → `targetsFactor` → `Factor` (e.g. Peer teaching → Math communication) * `Factor` → `relevantToStandard` → `StandardsFrameworkItem` (e.g. Algebraic reasoning → 6.EE.A.2) ## Entities ### LearnerModel Learner models are pairs of grades and academic subjects (e.g., math for grades 3-6, literacy for grades 4-6). For each learner model, there’s a subset of relevant factors and strategies. As such, they help contextualize what’s important for student success tied to specific grade bands and subjects. We have the following LearnerModels in the Knowledge Graph: * 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 #### Properties  These entities have the following metadata: | Property | Description | Type | Cardinality | | :------------------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :---------------------- | :---------- | | academicSubject | The academic subject | AcademicSubjectENUM | 1 | | attributionStatement | A 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 | The author of this content. | String | 1 | | content | The materials that make up a learner model along with additional information (if available). | String | 0..1 | | description | A 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 | The identifier of the item, either as textual strings or as URL (URI) links. | String | 1 | | license | A license document that applies to this content, typically indicated by URL. | String | 1 | | name | The name of the item. | String | 0..1 | | provider | The service provider, service operator, or service performer | String | 1 | ### Factor A factor is a characteristic that influences learning or performance. Factors span two categories: Context (e.g., background, environment, access to resources, attention, working memory) and Skills (e.g., decoding, fluency, algebraic reasoning). Factors may connect to other factors and can be linked to instructional strategies. #### Properties  These entities have the following metadata: | Property | Description | Type | Cardinality | | :------------------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :---------------------- | :---------- | | academicSubject | The academic subject | AcademicSubjectENUM | 1 | | attributionStatement | A 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 | The author of this content. | String | 1 | | category | A grouping for factors within a LearnerModel. | String | 0..1 | | citations | References to research that supports the factor. | Array | 0..n | | content | The materials that make up a factor along with additional information (if available). | String | 0..1 | | description | A 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 | The identifier of the item, either as textual strings or as URL (URI) links. | String | 1 | | license | A license document that applies to this content, typically indicated by URL. | String | 1 | | name | The name of the item. | String | 0..1 | | provider | The service provider, service operator, or service performer | String | 1 | ### Strategy The specific 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). #### Properties  These entities have the following metadata: | Property | Description | Type | Cardinality | | :------------------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :---------------------- | :---------- | | academicSubject | The academic subject | AcademicSubjectENUM | 1 | | attributionStatement | A 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 | The author of this content. | String | 1 | | category | A grouping for strategies within a LearnerModel. | String | 0..1 | | citations | References to research that supports the strategy. | Array | 0..n | | content | The materials that make up a strategy along with additional information (if available). | String | 0..1 | | description | A 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 | The identifier of the item, either as textual strings or as URL (URI) links. | String | 1 | | license | A license document that applies to this content, typically indicated by URL. | String | 1 | | name | The name of the item | String | 0..1 | | provider | The service provider, service operator, or service performer | String | 1 | ## Relationships The relationships relevant for LVN data are: * hasFactor * hasStrategy * interactsWithFactor * targetsFactor * relevantToStandard A hasFactor relationship connects a LearnerModel to one or more Factors included in that model’s profile; one-to-many `(:LearnerModel)-[:hasFactor]->(:Factor)` A hasStrategy relationship connects a LearnerModel to one or more Strategies recommended or available within that model; one-to-many `(:LearnerModel)-[:hasStrategy]->(:Strategy)` An interactsWithFactor relationship is a bidirectional association between two Factors representing mutual interplay. `(:Factor)-[:interactsWithFactor]->(:Factor)` A targetsFactor relationship indicates that a strategy is intended to build or directly influence a Factor; many-to-many `(:Strategy)-[:targetsFactor]-(:Factor)` A relevantToStandard relationship links a Factor to a StandardFrameworkItem to indicate relevance to the expectations expressed in that StandardFrameworkItem; many-to-many. `(:Factor)-[:relevantToStandard]->(:StandardFrameworkItem)` ## Schema release history | Date | Changed | | ---------------- | ---------------------------------------- | | January 28, 2026 | Added `relevantToStandard` relationship. | | December 8, 2025 | First release. |