11-1 Space Figures and Cross Sections

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Presentation transcript:

11-1 Space Figures and Cross Sections To recognize polyhedra and their parts To visualize cross sections of space figures With Euler’s Formula, students will decontextualize three-dimensional figures, reducing them to numeric values of their faces, edges, and vertices, as well as contextualize, pausing to consider the numeric values in terms of their original referents.

6 Vertices: R, S, T, W, U, V

2a. 12 2b. 30

11-1 Quiz The following questions are designed to help you determine how well you understood today’s lesson. Please take time to ask questions if you miss one and don’t know why! Record the number you get right on your portfolio sheet 

1. Use Euler’s Formula to find the missing number 1. Use Euler’s Formula to find the missing number. Faces: 25 Vertices: 17 Edges: ? 43 41 40 39 Non-Response Grid

2. Use Euler’s Formula to find the missing number 2. Use Euler’s Formula to find the missing number. Vertices: 11 Edges: 34 Faces: ? 25 28 26 24 Non-Response Grid

3. Use Euler’s Formula to find the missing number 3. Use Euler’s Formula to find the missing number. Edges: 29 Faces: 17 Vertices: ? 13 14 15 17 Non-Response Grid

23 edges 22 edges 25 edges 20 edges 4. Mario’s company makes unusually shaped imitation gemstones. One gemstone had 12 faces and 10 vertices. How many edges did the gemstone have? 23 edges 22 edges 25 edges 20 edges Non-Response Grid

5. Describe the cross section. pentagon trapezoid hexagon cube Non-Response Grid

ASSIGNMENT 11-1 p.692-694 #6-38 even Be sure to RATE your understanding of the lesson 4-3-2-1-0 after you finish it AND give me one complete sentence as to why you rated yourself that way then summarize what the lesson was about in a sentence or two.