CK-12

CK-12

CK-12 is an online platform that provides free K-12 textbooks, videos, exercises, flexbooks, and personalized learning activities across many subjects. It aims to help students and teachers access free, high-quality learning resources.
Education & Reference K-12 Education
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CK-12 alternatives ➤

CK-12: Free Online Learning Platform for K-12 Students

CK-12 is an online platform that provides free K-12 textbooks, videos, exercises, flexbooks, and personalized learning activities across many subjects. It aims to help students and teachers access free, high-quality learning resources.

What is CK-12?

CK-12 is an online platform that provides free K-12 textbooks, videos, exercises, flexbooks, and personalized learning activities across subjects like math, science, humanities, and more. It was started by Neeru Khosla and Murugan Pal in 2007 with the goal of making quality education accessible for all students.

Some key features of CK-12 include:

  • Flexbooks - customizable textbooks that teachers can adapt to their curriculum
  • Adaptive practice - personalized assignments based on student needs
  • Rich simulations and videos
  • Progress dashboards for students and teachers
  • Available for web, iOS, and Android

CK-12 flexbooks are designed to be highly customizable. Teachers can rearrange, add, or remove content to fit their teaching requirements. The assignments and practice questions can also be adaptive, adjusting the difficulty level based on individual student needs. This allows for personalized and mastery-based learning.

CK-12 covers major high school subjects including algebra, geometry, physics, chemistry, biology, humanities, and more. The materials are mapped to state standards in the U.S. All resources are free to use and remix thanks to generous support from foundations and earned revenue.

CK-12 Features

Features

  1. Provides free online textbooks, videos, exercises and activities
  2. Covers math, science, engineering, humanities, and career technical subjects
  3. FlexBooks allow teachers/students to customize materials
  4. Personalized learning through adaptive practice and mastery learning
  5. Aligned to curriculum standards like Common Core and state standards

Pricing

  • Free
  • Open Source

Pros

Completely free to use

High quality learning resources created by experts

Customizable materials for different needs

Adaptive learning caters to individual students

Available on any device with internet access

Cons

Limited compared to full curriculum programs

Not a full learning management system

Quality of user-generated content can vary

Lacks grade/assignment tracking features

Must be online to access materials

Official Links

Official Website
https://www.ck12.org

The Best CK-12 Alternatives

Top Education & Reference and K-12 Education and other similar apps like CK-12

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