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Bird Structure and Function

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
    Birds to Boeing

    Birds to Boeing

    by David Ewart, Jr. //basic

    For millions of years birds have ruled the air. With 9000 varieties that's a lot to get your feathers ruffled about. But, similarly so has aeronautics. Humans have studied our feathered friends and developed a variety of models to do the same...FLY!

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