OpenSciEd

Dataset last updated September 22, 2026

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Overview

The OpenSciEd dataset uses Curriculum entities and relationships.

The OpenSciEd dataset represents the OpenSciEd K–12 science curriculum, structured according to Learning Commons’ K-12 curriculum ontology. It is an NGSS-aligned, phenomenon-based curriculum: each unit anchors student investigation in a real-world phenomenon and a driving question, then sequences lessons so students develop an explanatory model.


Source	OpenSciEd ↗
Supported grades	K–11 High school courses cover topics in Biology, Chemistry, and Physics.
Includes	OpenSciEd curriculum
Dataset dependencies	U.S. academic standards - Science, ELA, and math standards
REST API endpoints	None

Use cases

Use case	Examples
Teach from phenomena	Integrate K–12 OpenSciEd lessons so science products follow three-dimensional NGSS alignment across grade bands
Recommend by performance expectation	Surface investigations that match a given NGSS performance expectation in lesson pickers and search
Generate NGSS-aligned science content	Anchor generated lesson supports or assessment items to a specific unit, lesson, or activity Stay coherent with a unit’s driving question and anchoring phenomenon
Support science teachers with curriculum-aware guidance	Detect which pedagogical move a lesson is calling for using Activity-level `curriculumLabel` values (`Navigate`, `Explore`, `Synthesize`, `Connect`) Ground guidance in OpenSciEd instructional routines
Evaluate AI-generated science content against NGSS	Check whether outputs address the right NGSS performance expectations at grade level Reuse the same evaluator across any Knowledge Graph dataset aligned to NGSS
Extend an existing curriculum product into science	Apply the same graph traversal and alignment patterns used for IM® v.360 Reuse curriculum-ontology logic across Math and Science

Schema

The data models a single hierarchy across all 15 courses — Course → LessonGrouping (unit) → LessonGrouping (lesson_set) → Lesson → Activity — with the following entities and relationships:

Data model diagram: Curriculum entities (Course, LessonGrouping,
Lesson, Activity, Assessment, Material, ClassroomMaterial) and
relationships (hasPart and
hasEducationalAlignment)


Entities	`Course` Root node for a grade-level or high school course (e.g. Grade 4, `ose2024:4`, or High School Biology, `ose2024:9`) `LessonGrouping` Unit (`groupName: "unit"`) — multi-week sequence anchored on a driving question in `name` and an anchoring phenomenon in `description` Lesson Set (`groupName: "lesson_set"`) — ordinal grouping of lessons inside a unit `Lesson` Single day’s instruction, with `curriculumLabel` values such as Anchoring Phenomenon, Investigation, or Putting Pieces Together `Activity` Time-boxed segment of a lesson, with `curriculumLabel` values such as Navigate, Explore, Synthesize, or Connect `Assessment` Attached to a unit, `Lesson`, or `Activity` Wraps a single `Material` that carries the assessment content `Material` Teacher-, student-, or family-facing resource attached to a unit, `Lesson`, or `Activity` `ClassroomMaterial` Physical supply or equipment an activity requires (e.g. Goggles, Hand lens, 1 D-sized battery) `audience` is always Teacher `StandardsFrameworkItem` (defined in Standards) performance expectation linked via `hasEducationalAlignment` Targets also include and math
Relationships	`hasPart` `Course` → `hasPart` → `LessonGrouping` (e.g. Grade 4 → Unit 1) `LessonGrouping` (`unit`) → `hasPart` → `LessonGrouping` (lesson_set) `LessonGrouping` (`lesson_set`) → `hasPart` → `Lesson` `LessonGrouping` (`unit`), `Lesson`, or `Activity` → `hasPart` → `Material` `LessonGrouping` (`unit`), `Lesson`, or `Activity` → `hasPart` → `Assessment` `Lesson` → `hasPart` → `Activity` `Assessment` → `hasPart` → `Material` `hasEducationalAlignment` `Course`, `LessonGrouping` (`unit` or `lesson_set`), or `Lesson` → `hasEducationalAlignment` → `StandardsFrameworkItem` `uses` `Activity` → `uses` → `ClassroomMaterial`

Dataset release history

Date	Changed
September 22, 2026	First release

Curriculum schema reference

Review entities, relationships, and property definitions for Curriculum.

U.S. academic standards dataset

OpenSciEd courses, units, lesson sets, and lessons align to standards in this dataset.

IM® v.360 dataset

Explore the corresponding math curriculum dataset that uses the same curriculum ontology.

Understanding Knowledge Graph

Getting Started

Using Knowledge Graph

Datasets

Schema Reference

Resources

Overview

Use cases

Schema

Dataset release history

Curriculum schema reference

U.S. academic standards dataset

IM® v.360 dataset

​Overview

​Use cases

​Schema

​Dataset release history

​Related topics

Curriculum schema reference

U.S. academic standards dataset

IM® v.360 dataset

Overview

Use cases

Schema

Dataset release history

Related topics