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Various organizations accept donated hair and convert it to wigs for children who need them, especially those in cancer treatments. But just how long would it take one person to make a meaningful contribution?

In this lesson students write and solve equations to predict how long one would need to grow out their hair to have enough to donate. They then determine how long it would take to make enough donations to construct an entire wig, working as an individual or with a group!

Students will

  • Write and solve one-variable equations to solve estimate the time it would take to donate certain lengths of hair given a growth rate.

Before you begin

Students do not need prior experience writing and/or solving equations.

Common Core Standards

Content Standards
Mathematical Practices

Shoutouts

To everyone who donates their ponytail to someone else!