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Leading adult education through support for and the effective application of technology.

CK12 - Free Digital Textbooks Sessions / Series


Adult learners now have a space on the CK-12 website with FlexBooks® 2.0 specifically customized for high school and equivalency learners. CK-12 creates high-quality and free resources that are easy to use in any type of remote, hybrid, or in-class learning situation. This is the future of adult education and it is all free!

These sessions focus on how the Free Digital Textbooks helps tailor the learning to individual student needs and they offer teachers suggested steps for struggling learners and automatic grading. FlexBook® 2.0 is filled with simulations, videos, interactive activities, and adaptive practice.

Each session title can be scheduled as a standalone event or requested as a series of sessions where titles are scheduled as separate events. Titles, listed in recommended order, include but are not limited to:

1. CK-12 for Adult Education - An Introduction: walks participants through best practices in navigating the site for Adult Education resources and do a thorough demonstration of all the features in the deeply interactive digital textbooks (FlexBooks® 2.0). Homework may be assigned.

2. Getting Started with FlexBooks® 2.0: shows how to create an account and make/enhance a Flexbook on the CK-12 system. Participants will also learn how to use CK-12 in their classroom. The CK-12 platform, customizing the existing Adult Education FlexBooks®, or even creating from scratch will be covered. Modifying lessons to include practice, quizzes, and more will also be covered. Homework may be assigned.

3. FlexBook® 2.0 Showcase & Support: this session allows participants to show off the digital FlexBooks® they have created. Creating classes in CK-12 or through an LMS to make assignments and to track student progress will also be discussed as well as advanced features of CK-12 including publishing and sharing.


All participants must have basic computer skills and a valid email address. Additional requirements may apply depending on the session.


OTAN Certificates of Attendance are awarded only for workshop sessions to those that are pre-registered and attend at least 75% of the scheduled time.

For more information about this or other OTAN PD options and sessions, contact

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OTAN activities are funded by contract CN220124 from the Adult Education Office, in the Career & College Transition Division, California Department of Education, with funds provided through Federal P.L., 105-220, Section 223. However, OTAN content does not necessarily reflect the position of that department or the U.S. Department of Education.