How many ancestors do you have as you go back in time? Students use exponential growth to see how many people they're related to throughout human history.
Should you ever buy an extended warranty? Students use percents and expected value to determine whether product warranties are a good deal.
How many calories does a body burn? Students interpret and apply the formula for resting metabolic rate (RMR) in order to learn about how calories consumed from food, calories burned from exercise, and calories burned automatically contribute to a body's weight.
What's a healthy weight? Students evaluate the Body Mass Index (BMI) formula for several celebrities, and discuss whether BMI is always a good measure of health.