While researching my recently updated article, Best Sites for Blended Learning, I came upon CK-12, a remarkable, new-to-me teaching platform that provides a varied and robust set of digital textbooks, AI-powered digital tools, teacher agents, simulations, and more.
CK-12 is the brainchild of the nonprofit CK-12 foundation, whose mission is to provide free access to high-quality, customizable educational content in multiple modalities, suited to multiple student learning styles, levels, and resources. Even better, all tools and features of CK-12 are fully free to educators, students, and families.
What is CK-12?
CK-12 is a K12 online education platform designed for teachers, schools, and families that serves as a customizable digital platform for teaching and learning.
Its flagship offering, Flexbooks, are standards-aligned digital textbooks for K12 math, science, English, social studies, and other topics, including college-level and adult education. Flexbooks are available in English, Spanish, Korean, German, Chinese, Greek, and Polish. A small selection of Flexbooks include built-in interactives.
In addition to Flexbooks, CK-12 offers a wide range of AI tools for teachers, AI teacher agents, learning analytics, study guides and adaptive practice for students, interactive simulations, and PLIX (Play Learn Interact eXplore) interactives.
How Does CK-12 Work?
Users can easily sign up for CK-12 via their Google, Microsoft, Apple, or email accounts. Once signed in, the teacher’s homepage highlights the newer AI-powered tools highlighted at the top, while the older flagship Flexbooks are lower down.
While the AI-powered tools and agents are intriguing and potentially time-saving for educators, the core of CK-12 is really the digital textbooks known as Flexbooks.
(Note that the continual right-to-left and left-to-right animation of the AI Teacher Tools boxes is an unfortunate choice for an organization that aims to be sensitive to learners of all types. Fortunately the student version of the site doesn’t include such distracting animations.)
FLEXBOOKS
Flexbooks carry a number of advantages over traditional textbooks. First, these are fully free, which offers an opportunity for substantial savings—perhaps as much as $1.5-2 million dollars for a district. And in contrast to paper textbooks, Flexbooks can be updated as needed, which of course represents yet another financial saving.
Additionally, Flexbooks are designed to be compatible with all external screen reading apps and tools, allowing for all content to be read aloud. This is especially useful for students who struggle to read at grade level. You can search Flexbooks by grade, language, and subjects. Additionally, one can browse the list of all Flexbooks, arranged by topic and grade.
For six selected math topics, Flexbooks are also available in an interactive as well as conventional version.
Educators can create classes directly in their CK-12 account, or via an existing LMS class, such as Google Classroom, Canvas, Schoology, and others. Then add students through email, roster upload, or direct entry. Assignments can be made quickly through links on every content page.
AI TEACHER TOOLS AND AGENTS
CK-12’s AI-powered Teaching Assistant comprises a large library of tools to speed teaching preparation, assessments and assignments, specialized learning, communications, and much more. Teacher Agent goes further, allowing users to quickly set up their own AI-powered agent, capable of interactive with students while adapting to their responses and learning styles.
What Are The Best CK-12 Features?
In addition to its flagship product Flexbooks, CK-12 offers several key customizable features ideal for the classroom setting.
ADAPTIVE PRACTICE
Adaptive practice exercises in selected topics are available for students in grades 1-5. Each topic includes dozens of subcategory skills that can be assigned to students.
For example, the Measurement topic is divided into money, time, systems, conversions, capacity, and mass. Within each subcategory skills include comparing, identifying, converting, and many others.
FLEXBOOK TEACHER TOOLS
CK-12’s Teacher Tools are built into every Flexbook page and include a quiz creator, lesson planner, and lesson “hook” generator. Simply click the desired link in the lower left-hand box in order to create a quiz, standards-aligned lesson plan, or lesson hook for the content on the current page.
As with most CK-12 features, users are free to adapt the pre-filled templates according to their own preferences.
LEARNING ANALYTICS
Comprising “foresights” and “insights,” Learning Analytics provide granular data on student and class performance, as well as overall performance for each question. While Foresights predicts a student’s future proficiency in the selected topic, Insights displays skill levels that students have already demonstrated, from "beginning" through “mastery.”
Using graphs and lists, the platform also shares performance data from the class, makes recommendations about how to address performance gaps, and highlights students who are performing exceptionally well.
INTERACTIVE SIMS
Sims are a great way to combine text- and graphic-based learning with interactivity, engaging students more deeply than static lessons. Available for physics and chemistry topics, CK-12’s interactive sims are concept-driven, standards-aligned, and offer downloadable PDF worksheets.
Each assignable simulation begins with a brief animation representing the target concept and includes a video tutorial, challenge questions, and easy sharing options.
How Much Does CK-12 Cost?
Remarkably, CK-12 is completely free for all users -- educators, students, families or anyone wishing to study and learn. The nonprofit CK-12 Foundation’s core mission is to provide content and technology tools that support customizable teaching in multiple modalities, for all types of learners, therefore all its tech tools are 100% free.
