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National Council of Teachers of Mathematics 2014 Annual Meeting and Exposition

Please note: The NCTM conference program is subject to change.

75- The Conic Sections: From Paper Folding to Sketches to Equations

Thursday, April 10, 2014: 9:30 AM-10:30 AM
243 (Convention Center)
Lead Speaker:
Loring Coes

  • 75_Coes_The Conic_Sections.pdf (1.9 MB)

  • It’s great to fold patty paper to make an outline of an ellipse or of the other conic sections, but why do the constructions work? We will connect the paper folds of parabolas, ellipses, and hyperbolas to dynamic sketches based on the definitions of these three figures. From there, we can make sense of the equations for the figures.

    Presentation Format: 9-12 Session
    Grade Band Audience: 9 to 12

    See more of: 9-12 Session