# The Tree of Peace: A Division Lesson

Unit 5: Division in Context
Lesson 3 of 3

## Big Idea: Division can be used to determine the approximate age of trees. Knowing the age of trees is one factor in determining their intrinsic and human value.

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Standards:
Subject(s):
Math, environmental ethics, Critical Area, Real World Math, ELA (legend)
63 minutes

### Jennifer Valentine

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