Join together to investigate truss joints. Scholars learn how to analyze forces at truss joints to determine the strength of truss bridges. They apply the "method of joints" in calculating the tension and compression forces at each joint and the maximum load of the truss bridge.

Concepts

force, bridges, tension, compression, systems of linear equations, civil engineering, mechanical engineering, technology resources

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Instructional Ideas

• Collaborate with a math teacher for the lesson
  

Classroom Considerations

• Pupils should be able to write and solve systems of linear equations in matrix form
• Knowledge of right triangle trigonometry and the Pythagorean Theorem is necessary
• There is an associated activity, Trust in the Truss: Design a Wooden Truss Bridge, for the lesson
  

Pros

• Provides a notetaking sheet for learners
• Includes detailed background information for instructors
  

Cons

• None

Common Core

HSN-VM.A.1 HSN-VM.C.6 HSA-REI.C.6