Surface Area of Pyramids and Cones

Discover formulas for surface area by analyzing nets. Using graph paper and nets, young scholars work toward deriving the formulas. They first derive the formula for a pyramid and then connect their processes to finding a formula for cones.

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CCSS: Designed
Additional Tags

Instructional Ideas

  • Incorporate as an opening lesson on a surface area unit
  • Practice using the surface area formulas with whiteboards as a quick understanding check
Classroom Considerations

  • Pupils should have a strong understanding of finding area of triangles and rectangles
Pros

  • Includes an opening video to create motivation for the lesson
  • Highlights important mathematics vocabulary
Cons

  • None
Common Core