GEOMETRY

Document Sample
GEOMETRY
GEOMETRY

MRS. NAGIS





2nd Quarter Project

General Directives





Our 2nd quarter project is going to involve some research and some creativity. We're going

to learn about bridges and build our own. The project is divided up into 5 parts as outlined

below.





Part I Bridge Questionnaire - Due Tuesday, November 18th



Part II "The Great Bridge Controversy" magazine article with questions

- Due Tuesday, November 25th



Part III Bridge Questionnaire II - Due Wednesday, December 10th



Part IV Construction of your own bridge according to directions

- Due Wednesday, December 17th



Part V Bridge-Breaking – Thursday, December 18th





Point value - 100 points



Part I 40 points

Part II 10 points

Part III 15 points

Part IV 20 points ( Appearance, complexity, originality)

Part V 15 points (Durability)





WON'T IT BE FUN??? REMEMBER, IT'S GEOMETRY FOR ENJOYMENT

AND CHALLENGE!!!









GEOMETRY

MRS. NAGIS

2ND Quarter Project

Bridge Questionnaire



Answer the following questions on bridges in complete sentences on your own paper.



1. What is the definition of a bridge?



2. A bridge for carrying water is called a .



3. A bridge for carrying a railroad or highway traffic is called a .



4. A bridge for pedestrian traffic is called a .



5. The very first bridge was an act of nature. Describe one example of how nature

contributed a bridge.



6. Primitive man was the first bridge builder. Describe one of his bridges.





Bridges, for thousands of years, were used to transport people and water. However,

with the coming of a certain invention, bridge building became an exact science. It

became necessary to build bridges that were stronger and covered a larger span.



7. What was this important invention?



8. In bridge building, one geometric shape is used for support because, theoretically,

it is rigid. What is this shape?



9. On November 7, 1940, a U.S. bridge collapsed. It had been nicknamed "Galloping

Gertie". Find:

a. the name of this bridge.



b. place.



c. type of bridge.









Following are some famous bridges. For each find:



a. Location.

b. Designer.

c. Year completed.

d. Type of bridge construction.

e. Something famous about it.



10. Eads Bridge



11. Brooklyn Bridge



12. George Washington Bridge



13. Golden Gate Bridge



14. Mackinac Bridge





15. Why were bridges covered?









GEOMETRY

MRS. NAGIS





2nd Quarter Project

Bridge Questionnaire II

There are several main types of bridge construction. For each type give the following

information:



a. A brief description of the type of construction.



b. Name of a bridge that utilizes that construction and its location.



c. Sketch a picture of it.



16. Beam Bridge.



17. Cantilever Bridge.



18. Suspension Bridge.



19. Truss Bridge.



20. Arch Bridge.





21. Sketch a design of your own bridge and then name it.









GEOMETRY

MRS. NAGIS

2nd Quarter Project

Straw Bridge Directions



Materials:

1. Forty (7 3/4)in. plastic straws.

2. Any number of straight pins.

3. One 3 x 22 inch strip of poster board.



Rules:

1. Straws may be cut, bent or folded in any way.

2. Only listed materials may be used. (No glue.)

3. Straws may not be filled with pins.

4. Poster board may not be rolled.



Specifications:

1. The bridge must span 19 inches. Therefore, do not cut off any of the length.

If you do it may fall through the span.



2. The bridge must have a road surface wide enough for a Matchbox car.



3. Weights will be placed in a box containing two straps placed in the middle of the

bridge.



4. The bridge must be able to support a minimum of 1000 g (2.2 lbs).



5. The score you will receive will be determined by the amount of weight on the

bridge when it collapses.









GEOMETRY

MRS. NAGIS NAME



"THE GREAT BRIDGE CONTROVERSY" article questions.



1. Who suggests the demise of the Golden Gate Bridge?



2. What is his background?



3. How does he justify his suggestion? By means of a model? Other means?

4. Who is his assistant?



5. What famous 19th century bridge builder is mentioned?



6. Which of his bridges is/are mentioned?



7. How did the next generation of bridge builders feel about his work?





8. Who is Robert Scanlan?





9. Does the article imply that bridge builders are primarily mathematicians or

engineers?



10. What happened on November 7, 1940?



11. Is there a visible record of what happened on that date?



12. Do Scanlan and McKenna agree as to what really happened that day? Explain.







13. Does McKenna say that the behavior of bridges relies on linear equations or

nonlinear equations?



14. Does that make the behavior more or less predictable?



15. Do you see a resolution to the "Great Bridge Controversy"? Explain


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