Curriculum

Reference for Curriculum datasets in Knowledge Graph: courses, lessons, activities, assessments, and materials aligned to the K-12 curriculum ontology.

Schema last updated September 23, 2025.

About

Our Curriculum datasets align to Learning Commons’ K-12 curriculum ontology.

You can query Knowledge Graph for curriculum data in a standardized way, without losing the distinctiveness of the original instructional design.

Content elements	Instructional materials that teachers and students engage with The instructional content preserves the original curriculum’s hierarchy and sequencing.
Metadata	Contextual information that supports instructional decisions, sequencing, and coherence Metadata is inferred from the content and makes instructional dependencies explicit. Use metadata to analyze how concepts build over time.

Key characteristics

Interoperability	Different curricula datasets can integrate seamlessly with other learning platforms and datasets.
Scalability	Additional curricula in the future will follow the same structure, ensuring coherence across instructional materials.
AI-enhanced instruction	Developers can query the data in a structured way, allowing AI-driven tools to provide more context-aware and pedagogically sound recommendations.

Data relationship diagram

Diagram description

Example:

• Course is the root (e.g., Illustrative Mathematics Grade 2)
• LessonGrouping is a unit or module (e.g. Unit 3: Adding and Subtracting within 100)
  • LessonGrouping -> hasEducationalAlignment -> StandardsFrameworkItem (e.g., 2.NBT.B.5)
  • LessonGrouping -> hasPart -> Lesson OR Material
  • LessonGrouping -> references -> GlossaryTerm
• Lesson is a single session (e.g., Lesson 1: How do we count collections?)
  • Lesson -> hasEducationalAlignment -> StandardsFrameworkItem
  • Lesson -> hasPart -> Activity OR Assessment
  • Lesson -> references -> GlossaryTerm
  • Activity -> usesRoutine -> InstructionalRoutine (e.g., Number Talks)
  • Assessment -> mutuallyExclusiveWith -> Assessment (equal alternatives)

See Entities for all possible nodes and Relationships for all possible edges.

Entities

Course

Structured sequence of instructional content and activities, designed to teach specific skills, knowledge, or competencies over a defined period:

• Typically encompasses LessonGrouping, Lesson, and Activity entities
• Aligns with curriculum standards and learning objectives for a grade level or subject.

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
courseCode	Identifier for the course used by the course provider (e.g. CS101 or 6.001)	String	0..1
curriculumLabel	Curriculum-specific categorization of the resource; in Illustrative Mathematics, an introductory activity might have curriculumLabel: "warm-up"	String	0..1
dateCreated	Date on which the element was created	Datetime	0..1
description	Description of the item	String	0..1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	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
inLanguage	Language of the content	LanguageENUM	0..1
license	License document that applies to this content, typically indicated by URL	String	1
lmsLoadingGuidance	Indicates the vendor’s guidance regarding whether this learning resource should be included when loading content into a Learning Management System (LMS); this property is advisory and may be overridden by local implementation policies; the value is selected from a controlled vocabulary.	lmsLoadingGuidanceENUM	0..1
name	Name of the item	String	0..1
provider	Service provider, service operator, or service performer	String	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1
timeRequired	Approximate or typical time it usually takes to work with or through the content of this work for the typical or target audience	Duration	0..1

example.json

{
  "type": "node",
  "identifier": "im:dac57835-073f-52d9-9d63-d6b3b2cb6b55",
  "labels": ["Course"],
  "properties": {
    "dateCreated": "2021-04-30",
    "timeRequired": "P136D",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "gradeLevel": "[\"2\",\"elementary_school\"]",
    "attributionStatement": "Knowledge Graph is provided by Learning Commons under the CC BY-4.0 license. Learning Commons received the scope and sequence of the Illustrative Mathematics 360 curriculum under CC BY-4.0 from Illustrative Mathematics.",
    "educationalUse": "instruction",
    "lmsLoadingGuidance": "unspecified",
    "description": "The big ideas in IM Grade 2 include: extending understanding of the base-ten number system;, building fluency with addition and subtraction; using standard units of measure; and describing and analyzing shapes. The materials, particularly units that focus on addition and subtraction, include problem types such as Add To, Take From, Put Together or Take Apart, Compare, Result Unknown, and so on. These problem types are based on common addition and subtraction situations, as outlined in Table 1 of the “Mathematics Glossary” section of the Common Core State Standards (NGA & CCSSO).\n",
    "identifier": "im:dac57835-073f-52d9-9d63-d6b3b2cb6b55",
    "provider": "Learning Commons",
    "name": "Grade 2",
    "inLanguage": "English",
    "courseCode": "im360:2",
    "audience": "[\"Teacher\",\"Student\",\"Family\"]",
    "author": "Illustrative Mathematics",
    "academicSubject": "Mathematics",
    "curriculumLabel": "Course",
    "publisherIdentifier": "482176"
  }
}

LessonGrouping

Set of related lessons within a Curriculum:

• Naming and level of a LessonGrouping may vary across publishers (e.g., Unit, Module, Chapter)

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
courseCode	Identifier for the course used by the course provider (e.g. CS101 or 6.001)	String	0..1
curriculumLabel	Curriculum-specific categorization of the resource; in Illustrative Mathematics, an introductory activity might have curriculumLabel: "warm-up"	String	0..1
dateCreated	Date on which the element was created	Datetime	0..1
description	Description of the item	String	0..1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	0..1
gradeLevel	Specifies the educational grade for which the Curriculum component is intended	GradeLevelENUM	0..n
groupLevel	Position of a lesson grouping in a series or sequence of lesson groupings	Integer	1
groupName	Lesson grouping name (e.g., Unit, Section, Module)	String	1
identifier	Identifier of the item, either as textual strings or as URL (URI) links	String	1
inLanguage	Language of the content	LanguageENUM	0..1
isOptional	Whether the Curriculum element is optional to complete	Boolean	0..1
license	License document that applies to this content, typically indicated by URL	String	1
lmsLoadingGuidance	Indicates the vendor’s guidance regarding whether this learning resource should be included when loading content into a Learning Management System (LMS); this property is advisory and may be overridden by local implementation policies; the value is selected from a controlled vocabulary.	lmsLoadingGuidanceENUM	0..1
name	Name of the item	String	0..1
ordinalName	Label that combines the item’s sequence number with descriptive text to indicate its order and context within a larger structure (e.g., ‘Lesson 1’, ‘Chapter 2’)	String	0..1
position	Position of an item in a series or sequence of items	Integer	0..1
provider	Service provider, service operator, or service performer	String	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1
timeRequired	Approximate or typical time it usually takes to work with or through the content of this work for the typical or target audience	Duration	0..1

Lesson

Focused instructional session within a larger curriculum structure, such as a LessonGrouping or Course, designed to achieve specific learning objectives:

• Typically includes Activitys, discussions, and Assessments
• Is intended to be completed within a defined timeframe (e.g., class period or session)

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
courseCode	Identifier for the course used by the course provider (e.g. CS101 or 6.001)	String	0..1
curriculumLabel	Curriculum-specific categorization of the resource; in Illustrative Mathematics, an introductory activity might have curriculumLabel: "warm-up"	String	0..1
dateCreated	Date on which the element was created	Datetime	0..1
description	Description of the item	String	0..1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	0..1
gradeLevel	Specifies the educational grade for which the Curriculum component is intended	GradeLevelENUM	0..n
identifier	Identifier of the item, either as textual strings or as URL (URI) links	String	1
inLanguage	Language of the content	LanguageENUM	0..1
isOptional	Whether the Curriculum element is optional to complete	Boolean	0..1
license	License document that applies to this content, typically indicated by URL	String	1
lmsLoadingGuidance	Indicates the vendor’s guidance regarding whether this learning resource should be included when loading content into a Learning Management System (LMS); this property is advisory and may be overridden by local implementation policies; the value is selected from a controlled vocabulary.	lmsLoadingGuidanceENUM	0..1
name	Name of the item	String	0..1
ordinalName	Label that combines the item’s sequence number with descriptive text to indicate its order and context within a larger structure (e.g., ‘Lesson 1’, ‘Chapter 2’)	String	0..1
position	Position of an item in a series or sequence of items	Integer	0..1
provider	Service provider, service operator, or service performer	String	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1
timeRequired	Approximate or typical time it usually takes to work with or through the content of this work for the typical or target audience	Duration	0..1

example.json

{
  "type": "node",
  "identifier": "im:2a6e3fd1-7429-5a78-9231-2b78c4098873",
  "labels": ["Lesson"],
  "properties": {
    "dateCreated": "2021-04-30",
    "timeRequired": "PT45M",
    "gradeLevel": "[\"5\",\"elementary_school\"]",
    "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 the scope and sequence of the Illustrative Mathematics 360 curriculum under CC BY-4.0 from Illustrative Mathematics.",
    "educationalUse": "instruction",
    "lmsLoadingGuidance": "unspecified",
    "identifier": "im:2a6e3fd1-7429-5a78-9231-2b78c4098873",
    "position": "4",
    "provider": "Learning Commons",
    "isOptional": "false",
    "name": " Compare Decimals",
    "inLanguage": "English",
    "courseCode": "im360:5",
    "audience": "[\"Teacher\",\"Student\",\"Family\"]",
    "author": "Illustrative Mathematics",
    "academicSubject": "Mathematics",
    "curriculumLabel": "Lesson",
    "ordinalName": "Lesson 5",
    "publisherIdentifier": "547489"
  }
}

Activity

Discrete instructional task or exercise within a lesson, designed for students, teachers, or both

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
courseCode	Identifier for the course used by the course provider (e.g. CS101 or 6.001)	String	0..1
curriculumLabel	Curriculum-specific categorization of the resource; in Illustrative Mathematics, an introductory activity might have curriculumLabel: "warm-up"	String	0..1
dateCreated	Date on which the element was created	Datetime	0..1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	0..1
gradeLevel	Specifies the educational grade for which the Curriculum component is intended	GradeLevelENUM	0..n
gradingRequired	Indicates if the activity must be graded	Boolean	0..1
identifier	Identifier of the item, either as textual strings or as URL (URI) links	String	1
inLanguage	Language of the content	LanguageENUM	0..1
isOptional	Whether the Curriculum element is optional to complete	Boolean	0..1
license	License document that applies to this content, typically indicated by URL	String	1
lmsLoadingGuidance	Indicates the vendor’s guidance regarding whether this learning resource should be included when loading content into a Learning Management System (LMS); this property is advisory and may be overridden by local implementation policies; the value is selected from a controlled vocabulary.	lmsLoadingGuidanceENUM	0..1
name	Name of the item	String	0..1
ordinalName	Label that combines the item’s sequence number with descriptive text to indicate its order and context within a larger structure (e.g., ‘Lesson 1’, ‘Chapter 2’)	String	0..1
position	Position of an item in a series or sequence of items	Integer	0..1
provider	Service provider, service operator, or service performer	String	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1
studentGroupingType	Describes intended grouping structure for student participation in an activity, indicating how students should collaborate to achieve the educational objectives	StudentGroupingTypeENUM	0..1
submissionRequired	Indicates if the activity must be submitted	Boolean	0..1
timeRequired	Approximate or typical time it usually takes to work with or through the content of this work for the typical or target audience	Duration	0..1

Assessment

Evaluation of a student’s mastery of knowledge, skills, or competencies through structured tasks or questions

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
courseCode	Identifier for the course used by the course provider (e.g. CS101 or 6.001)	String	0..1
curriculumLabel	Curriculum-specific categorization of the resource; in Illustrative Mathematics, an introductory activity might have curriculumLabel: "warm-up"	String	0..1
dateCreated	Date on which the element was created	Datetime	0..1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	0..1
gradeLevel	Specifies the educational grade for which the Curriculum component is intended	GradeLevelENUM	0..n
gradingRequired	Indicates if the activity must be graded	Boolean	0..1
identifier	Identifier of the item, either as textual strings or as URL (URI) links	String	1
inLanguage	Language of the content	LanguageENUM	0..1
isOptional	Whether the Curriculum element is optional to complete	Boolean	0..1
license	License document that applies to this content, typically indicated by URL	String	1
lmsLoadingGuidance	Indicates the vendor’s guidance regarding whether this learning resource should be included when loading content into a Learning Management System (LMS); this property is advisory and may be overridden by local implementation policies; the value is selected from a controlled vocabulary.	lmsLoadingGuidanceENUM	0..1
name	Name of the item	String	0..1
provider	Service provider, service operator, or service performer	String	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1
studentGroupingType	Describes intended grouping structure for student participation in an activity, indicating how students should collaborate to achieve the educational objectives	StudentGroupingTypeENUM	0..1
submissionRequired	Indicates if the activity must be submitted	Boolean	0..1
variant	Identifier or label distinguishing different forms of the same assessment, which may vary in item selection, sequencing, or difficulty while maintaining equivalent measurement intent	String	0..1

Material

Instructional content—readings, videos, worksheets, images, or digital resources that support learning activities

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
content	Content encoded as HTML	String	1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	0..1
identifier	Identifier of the item, either as textual strings or as URL (URI) links	String	1
inLanguage	Language of the content	LanguageENUM	0..1
license	License document that applies to this content, typically indicated by URL	String	1
materialType	Classification that indicates the role or purpose of a learning material within the educational context, describing how it is intended to support teaching and learning	StudentGroupingTypeENUM	1
name	Name of the item	String	0..1
ordinalName	Label that combines the item’s sequence number with descriptive text to indicate its order and context within a larger structure (e.g., ‘Lesson 1’, ‘Chapter 2’)	String	0..1
provider	Service provider, service operator, or service performer	String	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1

ClassroomMaterial

Physical tools, supplies, or resources that support instruction, but do not themselves contain instructional content (e.g., manipulatives, lab equipment, or presentation tools)

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
curriculumLabel	Curriculum-specific categorization of the resource; in Illustrative Mathematics, an introductory activity might have curriculumLabel: "warm-up"	String	0..1
dateCreated	Date on which the element was created	Datetime	0..1
description	Description of the item	String	0..1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	0..1
identifier	Identifier of the item, either as textual strings or as URL (URI) links	String	1
inLanguage	Language of the content	LanguageENUM	0..1
name	Name of the item	String	0..1
position	Position of an item in a series or sequence of items	Integer	0..1
provider	Service provider, service operator, or service performer	String	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1

GlossaryTerm

Vocabulary or concepts used in a curriculum that support comprehension of the instructional content

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
curriculumLabel	Curriculum-specific categorization of the resource; in Illustrative Mathematics, an introductory activity might have curriculumLabel: "warm-up"	String	0..1
dateCreated	Date on which the element was created	Datetime	0..1
description	Description of the item	String	0..1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	0..1
identifier	Identifier of the item, either as textual strings or as URL (URI) links	String	1
inLanguage	Language of the content	LanguageENUM	0..1
isOptional	Whether the Curriculum element is optional to complete	Boolean	0..1
license	License document that applies to this content, typically indicated by URL	String	1
lmsLoadingGuidance	Indicates the vendor’s guidance regarding whether this learning resource should be included when loading content into a Learning Management System (LMS); this property is advisory and may be overridden by local implementation policies; the value is selected from a controlled vocabulary.	lmsLoadingGuidanceENUM	0..1
name	Name of the item	String	0..1
position	Position of an item in a series or sequence of items	Integer	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1

InstructionalRoutine

Sructured, repeatable teaching strategy or pedagogical framework consistently employed within a curriculum to support instructional delivery and student engagement

Property	Description	Type	Cardinality
academicSubject	Academic subject	AcademicSubjectENUM	0..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
audience	Specifies the intended audience for a learning resource, indicating who the content is designed for or most relevant to	EducationalAudienceENUM	1..n
author	Author of this content	String	1
curriculumLabel	Curriculum-specific categorization of the resource; in Illustrative Mathematics, an introductory activity might have curriculumLabel: "warm-up"	String	0..1
dateCreated	Date on which the element was created	Datetime	0..1
description	Description of the item	String	0..1
educationalUse	Property classifies the resource based on whether it is used for delivering instruction or assessing student learning	EducationalUseENUM	0..1
gradeLevel	Specifies the educational grade for which the Curriculum component is intended	GradeLevelENUM	0..n
gradingRequired	Indicates if the activity must be graded	Boolean	0..1
identifier	Identifier of the item, either as textual strings or as URL (URI) links	String	1
inLanguage	Language of the content	LanguageENUM	0..1
isOptional	Whether the Curriculum element is optional to complete	Boolean	0..1
license	License document that applies to this content, typically indicated by URL	String	1
lmsLoadingGuidance	Indicates the vendor’s guidance regarding whether this learning resource should be included when loading content into a Learning Management System (LMS); this property is advisory and may be overridden by local implementation policies; the value is selected from a controlled vocabulary.	lmsLoadingGuidanceENUM	0..1
name	Name of the item	String	0..1
provider	Service provider, service operator, or service performer	String	0..1
providerDateCreated	Date on which the element was created by the provider	Datetime	1
providerDateModified	Date on which the element was updated by the provider	Datetime	1
publisherIdentifier	ID assigned by the original publisher	String	0..1

Relationships

Any relationships that relate to the Material, ClassroomMaterial, GlossaryTerm, and InstructionalRoutine entities are restricted and require prior approval. Contact [e-mail] ↗ for information about access and eligibility.

hasPart

Connects a parent element to its constituent components to hierarchically organize instructional content

Source entity	Target entity
Course	LessonGrouping
Course	Material
Lesson	Activity
Lesson	Assessment
LessonGrouping	Assessment
LessonGrouping	Lesson
LessonGrouping	LessonGrouping
LessonGrouping	Material
InstructionalRoutine	InstructionalRoutine
InstructionalRoutine	Material
Activity	Material
Assessment	Material
Lesson	Material

hasEducationalAlignment

Connects a Curriculum element to one or more StandardsFrameworkItem entities that specify what the element is intended to teach, assess, or support

Source entity	Target entity
Course	StandardsFrameworkItem
LessonGrouping	StandardsFrameworkItem
Lesson	StandardsFrameworkItem
Activity	StandardsFrameworkItem
Assessment	StandardsFrameworkItem
Material	StandardsFrameworkItem

usesRoutine

Connects a Curriculum element to one or more InstructionalRoutine entities, representing structured, repeatable teaching strategies consistently employed to support instructional delivery and student engagement

Source entity	Target entity
Course	InstructionalRoutine
Lesson	InstructionalRoutine
Activity	InstructionalRoutine

uses

Connects a Curriculum element to one or more ClassroomMaterial entities (e.g., handouts, manipulatives, or digital tools) that are necessary for delivery but do not contain instructional content themselves

Source entity	Target entity
Lesson	ClassroomMaterial
Activity	ClassroomMaterial

hasDependency

Connects a Curriculum element to one or more prerequisite elements of the same type

Source entity	Target entity
LessonGrouping	LessonGrouping
Lesson	Lesson
Activity	Activity

hasReference

Source entity	Target entity
InstructionalRoutine	Activity
InstructionalRoutine	Lesson
Lesson	Lesson
Activity	Lesson
Lesson	Activity
Lesson	Assessment
Assessment	Lesson
LessonGrouping	Assessment
Assessment	LessonGrouping
LessonGrouping	Lesson
Lesson	LessonGrouping

references

Connects a Curriculum element to other instructional content in a non-sequential way, highlighting connections that reinforce, revisit, or contextualize knowledge

Source entity	Target entity
Lesson	Lesson
Lesson	GlossaryTerm

mutuallyExclusiveWith

Connects Assessments to indicate that they are alternatives and overlap in content or intended purpose

Source entity	Target entity
Assessment	Assessment

Schema release history

Date	Changed
September 23, 2025	First release.