1. DEEP THINKING AND REAL FUN WITH VERTICES, EDGES, AND FACES Tracy Manousaridis, Shelle Crandell, Samantha Lowe and Kate Coleman Add pic of students with polyhedra

2. Headline Stories The answer is “only C.” What could the question be? A B C D A three-dimensional figure has 6 rectangular faces. Two edges are 1 inch long, two are 2 inches long, and one is 3 inches long. What can you figure out without measuring anything else?

3. What CAN we do with 3-dimensional figures?

4. Playing “Guess My Shape”

5. Composing and naming new figures

6. Constructing Figures  Predict what 3- dimensional figure your net will fold into.  Fold on the dotted lines and tape your figure together.  Were you surprised by your results?

7. How many faces? How many edges? How many vertices?  Work in your group to fill-in the chart  Do you notice anything interesting?  Can you generalize any rules?  What if I had a decagonal prism?  Decagonal pyramid?

8. Nets!  Predict what your nets will look like!  Fold, tape, explore!

9. Nets everywhere!

10. What will your net be?

13. Sorting  What is the same about the 3- dimensional figures in groups 2 and 4?  Compare the figures in group 3 with those in group 4.  How are the figures in group 1 different from those in group 4?  Compare the figures in group 1 with the figures in group 3.  Can you generalize some rules about pyramids? Prisms?

14. Sorting in 5 th grade

15. Figure Hunt!  I have 6 faces  I have 4 faces that are longer than the other 2  I have 8 vertices  I have parallel edges and perpendicular edges

16. Vocabulary in Context!  Vertices  Edges  Faces  Parallel  Prism  Pyramid  Penta  Attributes  Polyhedra  Net  Octagonal prism  Hexagonal prism  Pentagonal pyramid  Perpendicular  Quad-  Congruent  Symmetry  Cylinder  3-dimensional  Base  Triangular  Rectangular  Sphere  Cones  Surfaces

17. Think Math! Teaching Without Talking Saturday 9:30-10:30 Convention Center, Sagamore www.thinkmath.edc.org Visit the Think Math! display at “School Specialty” in the vendor gallery