Human Body

Lesson 5


Describe how digestion happens and the role of teeth in the digestive process by describing the connection between a series of scientific ideas or concepts.

Readings and Materials

  • Book: First Human Body Encyclopedia  pp. 82 – 85

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Target Task


Your friend told you that digestion happens quickly. Do you agree or disagree? If you disagree, convince your friend as to why. If you agree, explain why. 

What role do teeth play in the digestive process?

Mastery Response


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Key Questions


  • What is digestion?
  • What is physical digestion? Why does the author compare what happens with physical digestion to a food processor?
  • What is chemical digestion?
  • Pretend you eat a hamburger at 6 p.m. What happens to the food after that?
  • How does the visual of the digestive system contribute to our understanding of how digestion works?
  • The author says, "During the course of your life, you will have two separate sets of teeth." Explain what the author means by this.
  • Why do we have different types of teeth? Name one type and explain why they are important.
  • Why are the roots of a tooth important? How are they similar to plants?
  • What is decay? How is decay bad for teeth?






Enhanced lesson plan

Enhanced Lesson Plan

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April 2021


Common Core Standards

  • RI.2.3 — Describe the connection between a series of historical events, scientific ideas or concepts, or steps in technical procedures in a text.

  • RI.2.7 — Explain how specific images (e.g., a diagram showing how a machine works) contribute to and clarify a text.