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Identifying Solids using Nets

Identifying Solids using Nets. Presented April 28, 2006 NCTM 2006 Annual Meeting and Exposition. Form the solids and find their places. How many edges , points , and faces ? The shapes that make two will pass the test, But one that does not must be your quest.

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Identifying Solids using Nets

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  1. Identifying Solids using Nets Presented April 28, 2006 NCTM 2006 Annual Meeting and Exposition Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  2. Form the solids and find their places. How many edges, points, and faces? The shapes that make two will pass the test, But one that does not must be your quest. Three times as tall as its base is wide, The true King’s future lies inside. Neuschwander, C. (2003) Sir Cumference and the Sword in the Cone. New York: Scholastic Inc. p.5. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  3. What is an Edge? An edge is where two faces meet. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  4. What is a vertex? A vertex, or point, is where edges meet. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  5. What is a Face? A flat surface of a solid is called a face. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  6. What is a base? The base is the bottom face of a geometric solid. The base of the square pyramid is highlighted in green. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  7. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  8. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  9. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  10. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  11. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  12. How can you get the number 2 using the number of faces, vertices and edges on the chart? Write some ideas down on your paper for possibilities of having a total of 2. (hint: add faces and vertices together first!) Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  13. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  14. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  15. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  16. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  17. “The shapes that make two will pass the test, But one that does not must be your quest.” What can you do to get “2” from the “Faces + Vertices” column? (hint: subtract 2) Neuschwander, C. (2003) Sir Cumference and the Sword in the Cone. New York: Scholastic Inc. p.13 Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  18. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  19. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  20. “Three times as tall as its base is wide” If the base of the cone is 14 inches across, what will the height of the cone be? 14 in. X 3 = ?? 14 in. X 3 = 42 in. Neuschwander, C. (2003) Sir Cumference and the Sword in the Cone. New York: Scholastic Inc. p.5. Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  21. Is 47 inches too tall or too short? It is too tall! Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  22. If the Edgecalibur is about 48 inches tall, how wide will the base of the cone be? 48 inches ÷ 3 = ?? 16 inches Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

  23. 51 inches tall, 17 inches wide Is the cone tall enough for Edgecalibur? Let’s see... Presented by Colleen Eddy, Courtney Owen, and Claire McCasland

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