Students in Laurie O’Neill’s Smithtown High School East Design and Drawing for Production (DDP) Class recently worked together to create tetrahedron models using straws, string, and tissue paper. A tetrahedron (plural: tetrahedra) is a polyhedron composed of four triangular faces, three of which meet at each vertex. A regular tetrahedron is one in which the four triangles are regular, or "equilateral", and is one of the Platonic solids. The models are then combined to make larger tetrahedrons, and students compare the ratios of edge length, area, and volume of the models in an attempt to understand scaling factors. Principals of flight are also addressed. Tetrahedrals are an interesting design for a kite. You have lots of scope to explore, and you can build large and different kites without changing your basic design. The kite is a geometrical frame which is covered by sail. It is cellular and can be expanded easily just by tacking on more cells. It is also a very strong ridged structure so that you can use very light and flimsy materials. This class also counts towards art credit.
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Dear Friend,
Thank you for participating in the Relay For Life of Smithtown! I am happy
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