Learn how to creatively use the Polydron® Sphera Starter and Class Sets to make geometric models. This video provides tips for teachers, tutors, and parents of homeschooled children.
(10:21)

Learn how to creatively use the Polydron® Prism Starter Set to make geometric models. This video provides tips for teachers, tutors, and parents of home schooled children.

In this professionally-produced video, understand why children learn geometry most effectively when it is part of their daily lives and how children are capable of learning geometry at a much earlier age.

Learn that area is a measure of how much surface is covered. Explore the relationship between the size of the unit used and the resulting measurement. Find the area of irregular shapes by counting squares or subdividing the figure into sections. Lear...n how to approximate the area more accurately by using smaller and smaller units. Relate this counting approach to the standard area formulas for triangles, trapezoids, and parallelograms.[more]

Learn how to creatively use several Polydron® Classroom Sets to make geometric models. This video provides tips for teachers, tutors, and parents of home schooled children.

Learn how to creatively use the Polydron® Frameworks and Archimedean Solids Sets to make geometric models. This video provides tips for teachers, tutors, and parents of homeschooled children. (19:11)

Learn how to creatively use the Polydron® Pyramids Set to make geometric models. This video provides tips for teachers, tutors, and parents of home-schooleded children. (10:38)

Review appropriate notation for angle measurement, and describe angles
in terms of the amount of turn. Use reasoning to determine the measures
of angles in polygons based on the idea that there are 360 degrees in a
complete turn. Learn about the r...elationships among angles within
shapes, and generalize a formula for finding the sum of the angles in
any n-gon. Use activities based on GeoLogo to explore the differences
among interior, exterior, and central angles.[more]

Explore several methods for finding the volume of objects, using both
standard cubic units and non-standard measures. Explore how volume formulas for solid objects such as spheres, cylinders, and cones are derived and related.

Investigate the circumference and area of a circle. Examine what
underlies the formulas for these measures, and learn how the features of the irrational number pi (π) affect both of these measures.

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