Using Linear Equations to Define Geometric Solids

This Using Linear Equations to Define Geometric Solids lesson plan also includes:

Visualizing three dimensions from a two-dimensional drawing is challenging. Give your class a reference by focusing on the revolution of the cross-section. In this Common Core math lesson plan, pupils create a three-dimensional solid from the revolution of a two-dimensional figure. They then identify the two-dimensional figure and use linear equations to define its boundaries.

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CCSS: Designed
Instructional Ideas

  • Use to introduce finding volume of the composite figures
  • Break class into collaborative groups to encourage discussion
Classroom Considerations

  • Lesson requires background knowledge of graphing linear equations, calculating area and perimeter, and calculating volume of cones and cylinders
  • Materials needed include a straw, tape, graphing calculator, and graph paper
  • Requires ability to show an online applet
Pros

  • Resource uses multimedia to reinforce the idea of revolution
  • An interesting lesson that incorporates algebra and geometry topics
  • Includes handout, key, and a detailed teacher guide
Cons

  • None