## Stations 9 and 10## Building A PyramidA hands-on exercise: from net to geometric solid.## by Eldred MarshallTable of Contents || Versión español **6th grade** Measurement and Geometry 1.3 Mathematical Reasoning 1.0**7th grade** Measurement and Geometry 1.2 Mathematical Reasoning 1.0**8th grade** Algebra I 25.0
Students construct a scale model of the Great Pyramid at Giza. In the extension questions students are asked to use given formulas to calculate the surface area and volume of their model.
## MATERIALS:- Four 8 1/2" X 11" sheets of paper
- Four scissors
- Four rulers
- Four black pencils
- Four red pencils
- Four blue pencils
- Tape
## DIRECTIONS:Note: Each student will make a pyramid individually; however, students should help each other as they are completing the task.-
Following Diagram 1, fold one corner of the paper to the opposite side. Cut off the extra rectangle. The result is an 8 1/2" square sheet of paper. -
Fold the paper in half and in half again. Open the paper out and mark the midpoint on each side. Draw a line connecting opposite center points. -
Measure 3 1/4 inches out from the center on each of the four lines. Draw a red line from each corner of the paper to each point you just marked. Cut along these red lines to see what to throw away. -
Draw blue lines as shown below. - Neatly print your name at the base of one of the sides of the pyramid (before folding and taping).
- Fold along the lines. Tape the edges together.
- Congratulations! You now have a pyramid that is a scale model of the Great Pyramid at Giza.
## PRODUCT:One pyramid per student.## BONUS:Calculate the surface area for your pyramid using the formula: SA = b^2 + 2bs, where b is one of the sides of the base and s is the slant height (the distance from the base to the vertex of one of the triangular faces). SA = _______________________ in.^2 (square inches) Calculate the volume of your pyramid using the formula: V=b^2h/3, where b is one of the sides of the base and h is the height. V = _______________________ in.^3 (cubic inches) ## CLEAN-UP:All materials listed should be neatly placed in the basket.versión español |

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