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Andrew Dales

  • Pell’s Equation

    Activity

    Andrew Dales

  • Laser Beam

    Activity

    Andrew Dales

  • Intersections - plane and cub

    Activity

    Andrew Dales

  • The nine-point circle

    Activity

    Andrew Dales

  • Alternate Segment Theorem

    Activity

    Andrew Dales

  • Quadratic Function

    Activity

    Andrew Dales

  • Quadrilateral Tessellations

    Activity

    Andrew Dales

  • Energy Ellipse

    Activity

    Andrew Dales