​
Overview

Academic standards in Knowledge Graph represent the official expectations for student learning in the four core subjects (Math, English Language Arts, Science, and Social Studies) across all U.S. states. Our source for this dataset is 1EdTech’s CASE Network 2. The CASE specification was designed to let states describe their standards with full fidelity to their own frameworks, an important feature for preserving each state’s intent. However; this state-by-state flexibility makes it difficult to analyze standards across states.  We transformed the raw CASE data to conform to our schema, which allows standards to behave like a coherent, interconnected network rather than 50 separate, incompatible documents. Each standards framework in our model is:
  • Authoritative: Preserves the original source’s authorship, subject, adoption status, and content while enabling traceability back to the official publication.
  • Normalized: Uses controlled vocabularies for key attributes like grade level and adoption status, ensuring that frameworks can be compared and integrated without manual translation.
  • Interoperable: Structured to connect seamlessly with curriculum datasets, learning components, and assessments.
  • Machine-readable and human-interpretable: Organized as a coherent graph with unique identifiers, enabling both straightforward human navigation and AI-powered discovery.
By serving as a standardized metadata layer for diverse state frameworks, the standards dataset enables cross-state comparisons, supports instructional alignment, and powers richer analytics. The harmonization process also ensures that developers can query standards without needing to understand state-specific quirks in naming or structure.

​
Data relationship diagram

Standards Dataset Data Model Diagram High Level V2 Sv

​
Entities

​
StandardsFramework

The StandardsFramework entity represents a complete academic standards document published by an official body like a state department of education. They serve as the root entity that organizes and contextualizes all standards within a given framework.

​
Properties

PropertyDescriptionTypeCardinality
academicSubjectThe academic subject.AcademicSubjectENUM1
adoptionStatusThe adoption status of a framework within a given jurisdiction or governing body. Indicates whether the document has been formally adopted, deprecated, proposed, or otherwise designated for use.AdoptionStatusENUM1
attributionStatementA 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.String1
authorThe author of this content.String1
caseIdentifierURIA URI referencing the equivalent item in the CASE Network published by 1EdTech. This identifier can be used to trace the corresponding standard or structural element in the CASE dataset and establish equivalence between the source and this local representation.String1
caseIdentifierUUIDA UUID referencing the equivalent item in the CASE Network published by 1EdTech. This identifier can be used to trace the corresponding standard or structural element in the CASE dataset and establish equivalence between the source and this local representation.String1
dateCreatedThe date on which the element was created.Date0..1
dateModifiedThe date on which the element was most recently modified.Date0..1
descriptionA description of the item.String0..1
identifierThe identifier of the item, either as textual strings or as URL (URI) links.String1
inLanguageThe language of the content.LanguageENUM1
jurisdictionThe geographic, political, or organizational authority under which a standards framework or individual item is published, adopted, or implemented. A jurisdiction typically refers to a state, territory, country, or governing education agency responsible for endorsing or overseeing the framework.JurisdictionENUM1
licenseA license document that applies to this content, typically indicated by URL.String1
nameThe name of the item.String0..1
notesAn optional, human-readable field that provides additional context, commentary, or clarifying information about a framework, grouping, or standard.String0..1
providerThe service provider, service operator, or service performer.String1

​
Example

JSON
{
	"identifier":"42f9e712-69f5-5743-9cbb-3a5be508587d",
	"caseIdentifierURI":"https://satchelcommons.com/ims/case/v1p0/CFDocuments/c6493f4d-d7cb-11e8-824f-0242ac160002",
	"caseIdentifierUUID":"c6493f4d-d7cb-11e8-824f-0242ac160002",
	"name":"Louisiana Student Standards for English Language Arts",
	"jurisdiction":"Louisiana",
	"academicSubject":"English Language Arts",
	"inLanguage":"en-US",
	"adoptionStatus":"Implemented",
	"dateModified":"2023-11-19",
	"author":"1EdTech",
	"provider":"Chan Zuckerberg Initiative",
	"license":"https://creativecommons.org/licenses/by/4.0/",
	"attributionStatement":"Knowledge Graph is provided by CZI-E under the CC BY-4.0 license. CZI-E received state standards and written permission under CC BY-4.0 from 1EdTech."
}

​
StandardsFrameworkItem

The StandardsFrameworkItem entity represents an individual statement or structural element within a standards framework. Items may be normative statements (e.g., a standard that specifies what students should know or be able to do) or organizational groupings (e.g., strands, clusters).

​
Properties

PropertyDescriptionTypeCardinality
academicSubjectThe academic subject.AcademicSubjectENUM1
attributionStatementA 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.String1
authorThe author of this content.String1
caseIdentifierURIA URI referencing the equivalent item in the CASE Network published by 1EdTech. This identifier can be used to trace the corresponding standard or structural element in the CASE dataset and establish equivalence between the source and this local representation.String1
caseIdentifierUUIDA UUID referencing the equivalent item in the CASE Network published by 1EdTech. This identifier can be used to trace the corresponding standard or structural element in the CASE dataset and establish equivalence between the source and this local representation.String1
dateCreatedThe date on which the element was created.Date0..1
dateModifiedThe date on which the element was most recently modified.Date0..1
descriptionA description of the item.String0..1
gradeLevelSpecifies the educational grade for which the curriculum component is intended.Array of GradeLevelENUM0..n
identifierThe identifier of the item, either as textual strings or as URL (URI) links.String1
inLanguageThe language of the content.LanguageENUM1
jurisdictionThe geographic, political, or organizational authority under which a standards framework or individual item is published, adopted, or implemented. A jurisdiction typically refers to a state, territory, country, or governing education agency responsible for endorsing or overseeing the framework.JurisdictionENUM1
licenseA license document that applies to this content, typically indicated by URL.String1
normalizedStatementTypeA normalized value that describes the broad functional role of a StandardsFrameworkItem within a standards framework. This classification distinguishes between instructional targets, structural elements, and supportive or contextual content, regardless of how those elements are labeled or structured in individual state or national standards.NormalizedStatementTypeENUM1
notesAn optional, human-readable field that provides additional context, commentary, or clarifying information about a framework, grouping, or standard.String0..1
providerThe service provider, service operator, or service performer.String1
statementCodeA short, human-readable code that uniquely identifies a StandardsFrameworkItem within its immediate context. Typically used to refer to standards or elements in official documents, curriculum materials, or assessment systems. The statementCode is often alphanumeric (e.g., “3.NF.A.1”, “A.1B”, “MP1”) and reflects the framework’s internal coding scheme.String0..1
statementTypeA framework-specific classification that describes the local role or label of a StandardsFrameworkItem as defined by its source framework. Unlike the normalized frameworkItemType, which generalizes across systems, statementType preserves the vocabulary and taxonomy used in the originating standards (e.g., “Domain”, “Cluster”, “Strand”, “Benchmark”, “Practice Standard”).String0..1

​
Example

JSON
{
	"identifier":"9ef35b41-827b-5e57-8e32-304110c78d27",
	"caseIdentifierURI":"https://satchelcommons.com/ims/case/v1p0/CFItems/6bd8552e-6f8f-4538-bf33-d016ac080178",
	"caseIdentifierUUID":"6bd8552e-6f8f-4538-bf33-d016ac080178",
	"statementCode":"PC.F-SS.B.4",
	"description":"Describe the impact of a transformation matrix on a graphical object.",
	"statementType":"Standard",
	"normalizedStatementType":"Standard",
	"jurisdiction":"Iowa",
	"academicSubject":"Mathematics",
	"gradeLevel":["9","10","11","12"],
	"inLanguage":"en-US",
	"dateModified":"2024-08-15",
	"author":"1EdTech",
	"provider":"Chan Zuckerberg Initiative",
	"license":"https://creativecommons.org/licenses/by/4.0/",
	"attributionStatement":"Knowledge Graph is provided by CZI-E under the CC BY-4.0 license. CZI-E received state standards and written permission under CC BY-4.0 from 1EdTech."
}

​
Relationships

The relationships relevant for academic standards are:
  • hasChild
  • supports
  • hasEducationalAlignment

​
hasChild

A hasChild relationship connects a StandardsFramework to one or more structural StandardsFrameworkItem. These items serve as the top-level organizational elements of the framework that define the initial structure from which lower-level standards or competencies branch. (:StandardsFramework)-[:hasChild]->(:StandardsFrameworkItem)

​
Example

JSON
{
	"identifier":"50d20a12-f8f4-4312-b8d7-64dc56f15465",
	"relationshipType":"hasChild",
	"description":"A hasChild relationship indicates that one entity serves as the parent of another, representing a hierarchical connection in which the target entity is a direct child of the source entity",
	"sourceEntity":"StandardsFramework",
	"sourceEntityKey":"caseIdentifierUUID",
	"sourceEntityValue":"bc1a0fa1-661c-4f2d-9a56-70a132089995",
	"targetEntity":"StandardsFrameworkItem",
	"targetEntityKey":"caseIdentifierUUID",
	"targetEntityValue":"1bda7cef-e43d-401a-a62d-c4464008db7c",
	"dateModified":"2023-07-18",
	"author":"1EdTech",
	"provider":"Chan Zuckerberg Initiative",
	"license":"https://creativecommons.org/licenses/by/4.0/",
	"attributionStatement":"Knowledge Graph is provided by CZI-E under the CC BY-4.0 license. CZI-E received state standards and written permission under CC BY-4.0 from 1EdTech."
}
A hasChild relationship connects a StandardsFrameworkItem to one or more child StandardsFrameworkItem, enabling frameworks to represent hierarchical structures. These child items may be learning expectations, such as standards or competencies, or organizational elements like domains, strands, or conceptual groupings within the framework. (:StandardsFrameworkItem)-[:hasChild]->(:StandardsFrameworkItem)

​
Example

JSON
{
	"identifier":"19e5965e-d7cd-11e8-824f-0242ac160002",
	"relationshipType":"hasChild",
	"description":"A hasChild relationship indicates that one entity serves as the parent of another, representing a hierarchical connection in which the target entity is a direct child of the source entity",
	"sourceEntity":"StandardsFrameworkItem",
	"sourceEntityKey":"caseIdentifierUUID",
	"sourceEntityValue":"3719cb57-d7cc-11e8-824f-0242ac160002",
	"targetEntity":"StandardsFrameworkItem",
	"targetEntityKey":"caseIdentifierUUID",
	"targetEntityValue":"3719d50d-d7cc-11e8-824f-0242ac160002",
	"dateModified":"2018-10-24",
	"author":"1EdTech",	
	"provider":"Chan Zuckerberg Initiative",
	"license":"https://creativecommons.org/licenses/by/4.0/",
	"attributionStatement":"Knowledge Graph is provided by CZI-E under the CC BY-4.0 license. CZI-E received state standards and written permission under CC BY-4.0 from 1EdTech."
}

​
supports

A supports relationship connects a LearningComponent to one or more StandardsFrameworkItem, indicating that the component contributes to the understanding or mastery of the associated standards, competencies, or other formal learning expectations. Each LearningComponent represents a discrete skill that helps a learner achieve the broader goals defined in the StandardsFrameworkItem. (:LearningComponent)-[:supports]->(:StandardsFrameworkItem)

​
Example

JSON
{
	"identifier":"3e7b03df-c659-5556-8fcf-a4aab56678ec",
	"relationshipType":"supports",
	"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",
	"sourceEntity":"LearningComponent",
	"sourceEntityKey":"identifier",
	"sourceEntityValue":"9dd0efd5-f4de-59fc-a2a4-da55fc511ccf",
	"targetEntity":"StandardsFrameworkItem",
	"targetEntityKey":"caseIdentifierUUID",
	"targetEntityValue":"1664d979-eb8f-11e9-9f9f-0242ac140002",
	"dateCreated":"2025-09-10",
	"dateModified":"2025-09-10",
	"author":"Achievement Network & CZI-E",
	"provider":"Chan Zuckerberg Initiative",
	"license":"https://creativecommons.org/licenses/by/4.0/",
	"attributionStatement":"Knowledge Graph is provided by CZI-E under the CC BY-4.0 license. CZI-E received learning components under CC BY-4.0 from Achievement Network."
}

​
hasEducationalAlignment Beta

A hasEducationalAlignment relationship connects a Course to one or more StandardsFrameworkItem, specifying the academic standards, learning goals, or competencies the course is intended to teach, assess, or require. This relationship type is also used for other curriculum elements that align to StandardsFrameworkItem. (:Course)-[:hasEducationalAlignment]- >(:StandardsFrameworkItem)