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Accuracy and Precision

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
    Photo Finish

    Photo Finish

    by CK-12 //basic

    Find out how optical instruments are used to measure the times of Olympic athletes with great precision and accuracy.

  • Real World Application
    Strontium Clock

    Strontium Clock

    by CK-12 //basic

    Find out how a strontium clock keeps time, why it is extremely accurate, and why such accurate time keeping is important.

  • Real World Application
    A Significant Win

    A Significant Win

    by CK-12 //basic

    Learn what significant figures are and why they are important in measuring the times of world-class athletes.

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