**DRAFT:**This module has unpublished changes.

This lesson will take approximately three days to complete.

**Day 1:** Students spend 20 minutes doing an experiment that demonstrates exponential growth and decay. The next 20 minutes are spent debreifing the data the students collected and showing the exponential equations that go along with them. Students will then spend the remaining going over examples like those they will see in the homework.

**Day 2: **The second day is where students dive in to real life examples and compare exponential growth and decay. The students spend brief periods of time (10-15 minutes) on growth and decay. The remainding 25 minutes will be spent on a problem relating the content they have been studying to the bigger unit of Medieval France.

**Day 3: **The last day is spent looking at growth and decay rates. After being introduced to the new material (15 minutes), the students will spend the remaining time in groups developing graphs of the approximate population of Europe during the years of the Black Plague.

**DRAFT:**This module has unpublished changes.

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