Summary
So… just how much caffeine can you have before you end up in the ER?
- Optionally read [this article from *The Atlantic*](http://www.theatlantic.com/health/archive/2013/01/how-much-caffeine-before-i-end-up-in-the-er/267129/) about caffeine and increased ER visits. Students will brainstorm questions about caffeine.
- Students look up the caffeine content of five different drinks and calculate how many one could have before it became dangerous.
- Analyze that data using any method you'd like. This is left open so that you can assign an appropriate task for your kids' abilities: bar graphs, measures of central tendency, equivalence with ratios, etc.
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