Building Bridges...
towerbridge



WebQuest on Bridge Design
By: Dawn A. Ramsay

People are lonely because they build walls instead of bridges. Joseph F. Newton



Introduction

Bridges are used to make connections. In this webquest students will use the concepts in bridge building to make connections to the culture they currently live in, develop an understanding of the forces at work in bridges, and work cooperatively to build a bridge and connect with each other.

Content and Grade Level

This webquest is appropriate for Middle School Students. It can easily be adapted for lower or higher grade levels. Students will cover a variety of subject areas and curriculum concepts.

Quests

1. Tour bridges around the world.

2. Learn about the physics that make bridges work.

3. Enhance research and investigation through the use of technology.

4. Look at materials and methods of bridge construction.

5. Use research, presentation, articulation and models to show how and why of chosen construction methods are best



Standards

Science

1. Students will understand and demonstrate the ideas of system, model, change, and scale in exploring scientific and technological matters.

2. Students will understand the relationship between force, mass, and the motion of objects.

Technology

3. Demonstrate positive social/ ethical behaviors when using technologies and practice responsible use of technology systems and software.

Select and use appropriate tools and technology resources to accomplish a variety of tasks and solve problems.

4. Collaborate with peers, experts, and others to contribute to a content-related knowledge base by using technology to compile, synthesize, produce and disseminate information, models, and other creative works.

Mathematics

5. Students will estimate and measure to a required degree of accuracy and precision by selecting and using appropriate units, tools, and technologies.

Social Studies

6. Students will understand social systems and structures and how these influence individuals.



Task

Your team is being given a chance to present a presentation to the London Engineering and Community Expansion Service Group. In this presentaton, it will be your task to convince them that you can construct the best new bridge to span the Thames River. You must build a presentation and bridge model that demonstrates your knowledge of bridge building and understanding of how bridges influence London culture historically and presently.

Job 1

Your first job is to research.

1. You need to learn about different bridge types.

2. Understand the importance that different bridges have had on London society (and others).

*Create in your student folder a document with notes on at least five different types of bridge structures, forces at work within them, and notes on society influence. Document real life examples,record important shapes within them. Show where the forces are at work. Create a section dedicated to London's bridges. How did they help/hurt London and/or effect London culture/society. These notes should be in your own words and organized neatly with titles and subtitles. You will need a cover sheet and page numbers.

*Document all websites and research material used. You will use these later to form your bibliography.One copy will be saved to your folder and another turned in. Helpful links are below.


Notes Evaluation Rubric

Notes Guide

Resources
PBS Bridges
NOVA Bridges
Glass Steel and Stone-Bridges by Country
Matsuo Bridge Company-Bridge Types
Thames, London's River, guide to the bridges
London's Bridges
A History of London Bridges

Consider and answer the following questions as you are researching, designing, and building. Refer back to them often. These are not meant to be directly answered, but used as a guide in researching and planning.

1. Which bridges have previously worked best in river crossings in the past?
2. How has technology helped to increase bridge efficiency?
3. What geometric shapes increase bridge efficiency?
4. How did London's bridges influence London's culture?
5. What negative aspects might you encounter when "Building Bridges"?

Job 2

Using the bridge specifications sheet provided in your folder , you will design a truss bridge. It must be able to sit on the "platforms" on the spec. sheet. NOTHING may touch the "water". You are to draw/or design on the computer the side view, top view, and bottom view. These must be drawn remembering that the drawing will match the model exactly. Please save your documents with your names and the view being drawn. (example:dawn_topview) The bridge must not exceed the following specifications:

60grams

10cm high

10cm wide

28 cm long


Bridge Specification Sheet-Click here to print a copy of the sheet used to draw/design your bridge




Job 3

Convince us your bridge is this best. Create a presentation, using your choice of software, convincing us that your bridge is the best for the Thames project. Use FACTS!!! Use Opinions. MAKE IT PERSUASIVE!!!! GET INTO CHARACTER! You will be graded on your ability to use fact and opinion to PERSUADE us. THIS IS A PERSUASIVE ASSIGNMENT. Think commercials, think board room presentation, think about words that convince. Why should I choose your bridge? It must be AT LEAST 3 minutes long.


Questions to consider when working on your presentation-Click Here



Conclusion

Well done! You have just experienced, at least in a small way, many of the issues that real engineers face. Building isn't just about structure. Building is trying, failing, succeeding, influencing, researching, developing, finding, promoting, and sometimes making history.

Evaluation












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