OER Commons vs CK-12 FlexBook 2.0

OER Commons9.3Visit CK-12 FlexBook 2.08.5Visit

Higher score OER Commons #2 in Open Educational Resource Platforms 9.3/10 Free plan Free plan✓ 0 of 6 features Visit OER Commons

vs

CK-12 FlexBook 2.0 #8 in Open Educational Resource Platforms 8.5/10 Free plan Free plan✓ 0 of 6 features Visit CK-12

• OER Commons fits best

  Schools and educators building reusable OER

• CK-12 FlexBook 2.0 fits best

  Interactive K–12 science learning resources

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Side by side

Feature	OER Commons 9.3/10 Visit ↗	CK-12 FlexBook 2.0 8.5/10 Visit ↗
At a glance
Editor score	9.3	8.5
Ranking	#2 in Open Educational Resource Platforms	#8 in Open Educational Resource Platforms
Best for	Schools and educators building reusable OER	Interactive K–12 science learning resources
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud	Cloud
Platforms	Web	Web
Support	Email, Tickets, Community, Docs	Email, Community, Docs
Integrations	5 integrations	6 integrations
Built for	Solo, Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features OER Commons 0/6 · CK-12 FlexBook 2.0 0/6
Open-license filter	Not checked yet	Not checked yet
Remix and adaptation	Not checked yet	Not checked yet
Authoring tools	Not checked yet	Not checked yet
Publishing workflow	Not checked yet	Not checked yet
API access	Not checked yet	Not checked yet
Content review	Not checked yet	Not checked yet
Specs
Download formats	Not checked yet	Not checked yet
Our review
Pros	Searches resources by subject, level, and standards Open Author supports creation, adaptation, and sharing Connects with Canvas, Moodle, Blackboard, Schoology, and Google Classroom	Customizable textbooks combine lessons, videos, interactives, and practice. Physics and chemistry simulations support interactive concept learning. Assignments, assessments, and progress insights support classroom management.
Cons	The platform is web-based Editing depends on each resource’s usage rights Resource formats and access conditions vary across the library	Its strongest scope is K–12 science rather than broader subject coverage. The platform is browser-based across supported laptops, tablets, and mobile devices. Teachers must tailor chapters, add materials, and organize assigned content.
Our verdict	OER Commons is a freely accessible online library and collaboration platform for teachers, curriculum specialists, students, and other learners. It supports discovery, creation, adaptation, review, and organization of open educational… Read the review →	CK-12 FlexBook 2.0 is a free, browser-based platform for customizable digital textbooks and interactive learning materials. It is designed for K–12 science learning and serves students, teachers, parents, and schools. Teachers can… Read the review →

Strengths and trade-offs

• OER Commons — where it wins

  • Searches resources by subject, level, and standards
  • Open Author supports creation, adaptation, and sharing
  • Connects with Canvas, Moodle, Blackboard, Schoology, and Google Classroom

  Where it doesn't

  • The platform is web-based
  • Editing depends on each resource’s usage rights
  • Resource formats and access conditions vary across the library

• CK-12 FlexBook 2.0 — where it wins

  • Customizable textbooks combine lessons, videos, interactives, and practice.
  • Physics and chemistry simulations support interactive concept learning.
  • Assignments, assessments, and progress insights support classroom management.

  Where it doesn't

  • Its strongest scope is K–12 science rather than broader subject coverage.
  • The platform is browser-based across supported laptops, tablets, and mobile devices.
  • Teachers must tailor chapters, add materials, and organize assigned content.

• OER Commons9.3/10 · Free plan

  A broad, free OER library with creation, remixing, review, and LMS connections.

  Visit OER CommonsFull verdict →
• CK-12 FlexBook 2.08.5/10 · Free plan

  A free, science-focused platform combining editable textbooks, simulations, practice, and assessments.

  Visit CK-12Full verdict →