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Dan Hanson

  • Dude+Mirror Problem

    Activity

    Dan Hanson

  • Copy of Two-stroke engine

    Activity

    Dan Hanson

  • 20points_star.ggb

    Activity

    Dan Hanson

  • Ellipse_locus033119

    Activity

    Dan Hanson

  • parabola_locus2

    Activity

    Dan Hanson

  • Trig Identity: Angle Sum

    Activity

    Dan Hanson

  • Spherical Aberration Demonstrator

    Activity

    Dan Hanson

  • Internal_Tangents_123017

    Activity

    Dan Hanson

  • Tangent Circles Construction

    Activity

    Dan Hanson

  • Tangents_2-circle122717

    Activity

    Dan Hanson

  • Tangents_1-circle122717

    Activity

    Dan Hanson

  • Geometric_Mean_Construction_122717

    Activity

    Dan Hanson

  • rotation_1

    Activity

    Dan Hanson

  • rotation_1

    Activity

    Dan Hanson

  • Physics Related

    Book

    Dan Hanson

  • Constructing the 4th proportional segment via rotation & translation

    Activity

    Dan Hanson

  • Unit Circle Demonstrator

    Activity

    Dan Hanson

  • To find the foci of an ellipse, given the lengths of the axes

    Activity

    Dan Hanson

  • Ceva's Theorem demonstration sketch

    Activity

    Dan Hanson

  • hyperbolic geometry

    Book

    Dan Hanson

  • 3D Aids & Tutorials

    Book

    Dan Hanson