Learning objects with many modalities:

  • Text
  • Video
  • Audio
  • Image
  • Quiz
  • Interactivity
36 million+ learning experiences delivered and counting…
5000+ concepts learned through 15,000+ resources
Services like CK-12 make it easy for teachers to assemble their own textbooks. Content is mapped to a variety of levels and standards including common core. You can start from scratch or build from anything the the FlexBooks library.

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