# Bridges: Human links and innovations

## CONTENTS OF CURRICULUM UNIT 01.05.02

- Narrative
- Background on Bridge Type
- Different Types of Beam Bridges
- Background on Physical Forces and Bridge Design
- Engineering Vocabulary:
- Mathematical Vocabulary
- Experiment 1: Understanding Force7 (1 Day)
- Experiment 2: Name that Load8 (1 Day)
- Experiment 3: Feel the Pressure (1 Day)
- Experiment 4: Tension (1 Day)
- Experiment 5: Sponge Beam (1 Day)
- Experiment 6: Toothpick Truss (1-2 Days)
- Experiment 7: Straw Shape (1-2 Days)
- Experiment 8: Paper Bridge (1-2 Days)
- Use of math in bridge designs
- Using math to make a scale model bridge.
- The Problem: (10-15 Days)
- Web Site
- Bibliography

### Unit Guide

## Bridging the Math Gap

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## Use of math in bridge designs:

Math is used in bridge building from the measurements, projection, cost, estimating completion dates and many more applications. The basic mathematic skills needed to complete this assignment are those, which are fundamental math concepts. Number sense, number line is used to develop the blueprint to scale. Proportion is needed to represent the design specifications to the blueprint. Geometry is needed to understand how and why the triangle is important to bridge building. Algebra can be applied by developing the equations, which represent the bridge measurement, proportions using variables.