CK-12 FlexBook 2.0
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VisitCK-12 FlexBook 2.0 vs OpenStax
What both publish
| Fact | CK-12 FlexBook 2.0 | OpenStax |
|---|---|---|
| Accessibility | CK-12’s 2024 VPAT states that the FlexBooks 2.0 platform meets AA conformance across the criteria covered by the report. | OpenStax works toward WCAG 2.1 Level AA and Section 508 compliance and uses Level Access for automated and manual accessibility reviews. |
| Audience | FlexBooks are designed for educators and students and cover K–12 topics. | OpenStax provides free, openly licensed textbooks and affordable technology for introductory courses. |
| Integrations | CK-12 lists Google Classroom, Canvas, Schoology, Kiddom, Clever and ClassLink as SSO or LMS partners. | Assignable supports LTI 1.3 and major LMS platforms including Blackboard, Canvas, D2L Brightspace, and Moodle. |
| Self-hosting | CK-12’s privacy policy says the platform is operated and hosted on servers in the United States, with no self-hosting procedure documented. | OpenStax documents public repositories and APIs but does not publish a supported self-hosting deployment for its reader or Assignable service. |
CK-12 FlexBook 2.0 plans
- CK-12 FlexBook 2.0Free
- FlexBook 2.0Free
OpenStax plans
- OpenStax textbooksFree
- OpenStax AssignablePriced on request
Pick CK-12 FlexBook 2.0 if…
FlexBook 2.0 suits K–12 educators who want to adapt textbook chapters and assign lessons or practice to classes and differentiated groups. Students can use its lessons and adaptive practice, while the browser access supports a range of device types.
Pick OpenStax if…
OpenStax suits students seeking free introductory-course textbooks and educators who need course materials or LMS assignments. Some student features and a small number of titles require an account.