| http://www.w3.org/ns/prov#value | - The topics range widely: number tricks and deductive reasoning, graphing the path of billiard balls, number sequences such as the Fibonacci sequence , functions and their graphs, large numbers and logarithms, polygons and symmetry (helping the student learn to construct many exciting models of polyhedra--what my kids call geodesics"), mathematical curves (including ingenious ways to fold these cu
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