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Breaking the Mold

(Complete Item Description)

Abstract:: In this math activity, students conduct a strength test using modeling clay, creating their own stress vs. strain graphs, which they compare to typical steel and concrete graphs. They learn the difference between brittle and ductile materials and how understanding the strength of materials, especially steel and concrete, is important for engineers who design bridges and structures.

Subject:: Mathematics and Statistics, Science and Technology
Grade Level:: Primary, Secondary
Collection:: TeachEngineering

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Strawkets and Weight

(Complete Item Description)

Abstract:: In this activity, students investigate the effect that weight has on rocket flight. Students construct a variety of their own straw-launched rockets, or "strawkets," that have different weights. Specifically, they observe what happens when the weight of a strawket is altered by reducing its physical size and using different construction materials. Finally, the importance of weight distribution in a rocket is determined.

Subject:: Mathematics and Statistics, Science and Technology
Grade Level:: Primary
Collection:: TeachEngineering

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Strength of Materials

(Complete Item Description)

Abstract:: Students learn about the variety of materials used by engineers in the design and construction of modern bridges. They also find out about the material properties important to bridge construction and consider the advantages and disadvantages of steel and concrete as common bridge-building materials to handle compressive and tensile forces.

Subject:: Mathematics and Statistics, Science and Technology
Grade Level:: Primary, Secondary
Collection:: TeachEngineering

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Stressed and Strained

(Complete Item Description)

Abstract:: Students are introduced to the concepts of stress and strain with examples that illustrate the characteristics and importance of these forces in our everyday lives. They explore the factors that affect stress, why engineers need to know about it, and the ways engineers describe the strength of materials. In an associated literacy activity, while learning about the stages of group formation, group dynamics and team member roles, students discover how collective action can alleviate personal feelings of stress and tension.

Subject:: Mathematics and Statistics, Science and Technology
Grade Level:: Primary, Secondary
Collection:: TeachEngineering

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