Hair & Nails: How Fast Do They Grow?

This Hair & Nails: How Fast Do They Grow? lesson plan also includes:

Find here a complete lesson dealing with the equations and graphs of proportional relationships, as well as what each individual point on such a graph represents. It may appeal to girls in particular, as the data details the growth rates of hair and fingernails. Individuals measure the length of their own hair, apply a unit rate equation, graph the growth, and then predict how long it will take for it to reach a specified length. 

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CCSS: Designed
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Classroom Considerations

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Pros

  • Seventh graders will have fun measuring hair length and then applying math skills
  • Designed for seventh grade Common Core standards in ratios and proportional relationships
  • Several additional resources are provided regarding hair and nail growth
Cons

  • None