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Foot Bridge

​​Lesson Objectives:
  1. Students will use craft materials to create a bridge that meets a set of requirements.
  2. Students will use the concepts of tension and compression in designing their bridges.
  3. ​Students will construct stable free-standing structures.
  4. Students will test and modify their designs.

​Materials:
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Review the concepts of tension and compression with the students.
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Have students measure and color a twelve-inch-wide river on their poster board. Tell the students that they will be making a "foot bridge," a bridge that will span a foot-wide river and will support a 100-gram weight. Provide craft materials and plenty of time for testing and redesign.  
Examples:
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