
Engage your students in percents as they get excited about March Madness. Is getting a higher seed really an advantage? Use 30 years of data to help determine for which seeds it makes sense to pick an upset.
Students use yearly percent increase data to decide which stock: Apple, Disney or Amazon, they should have invested in way back in 2015.
What was the net gain of these stocks?
How do you figure that?
Does the arithmetic or geometric average of those increases equal their total gain or loss over the years?