Drive to the airport and pay for parking

OR

Take a taxi?

h/t @HRSBMathematics

Whichever option you choose, justify your reasoning using mathematics.

Drive to the airport and pay for parking

OR

Take a taxi?

h/t @HRSBMathematics

Whichever option you choose, justify your reasoning using mathematics.

Be required to carry 30 bath towels OR 80 bars of soap? The distance or duration is up to you, but come up with a standard for the class. Also, some Google searches may be necessary to make your decision.

Whichever option you choose, justify your reasoning with mathematics. Maybe you can stack bars of soap in an array that’s easy to carry. Maybe you can load up on bath towels.

How much does a bath towel weigh (on average)?

How much does a bar of soap weigh (on average)?

This would also be a fun experiment to do in class with bath towels and bars of soap.

h/t @mjfenton

Whichever option you choose, justify your reasoning with mathematics.

For this one, you’re going to want to be prepared:

http://www.megamillions.com/difference-between-cash-value-and-annuity

http://www.lotteryusa.com/mega-millions/

For the record, I amĀ *not* condoning the lottery. However, this is a fun activity for students to think about. Oh to dream…

have a pound of (Canadian) quarters or a pound of (Canadian) dimes?

Whichever option you choose, justify your reasoning with mathematics.

The weight of the coins may help.

h/t @wheeler_laura

RECEIVE 500 POUNDS OF PENNIES

OR

40 POUNDS OF QUARTERS? (h/t @approx_normal for this one)

Whichever option students choose, be sure to justify the reasoning with mathematics.

Data from the US Mint might help.

After students finish, have them contemplate what they’re going to do with all that coin!

This is based on a true story. It might also be fun to do some fact-checking and hypothesize why the numbers are different

Use a 70% discount coupon

OR

a 40% discount, 20% discount, then 10% discount coupon

**on your entire purchase?**

h/t @robertkaplinsky

Whichever answer you choose, justify your reasoning with mathematics.

If you would like a version of the image without the percents so you can manipulate them easier, please let me know.

Finally, a calculus example!

Whichever option you choose, please justify your reasoning with mathematics.

Huge thanks to @approx_normal for pointing me to this post from @pickover

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