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Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
  • Real World Application
    Where's the Remote?

    Where's the Remote?

    by CK-12 //basic

    Discover the science behind the remote control, including how it sends infrared light signals to the devices it controls.

  • Real World Application
    Printing with Light

    Printing with Light

    by CK-12 //basic

    Learn about the first female photographer, how to make prints with UV light as she did, and how the process works.

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