Financial pitfalls

Hello,

I am a retired High School Science Teacher and plan to sub in the next school year in Des Moines Public Schools. Something that immediately comes to my mind is how some fo my students and their immediate family members would make just minimum payments on the balance due on their credit cards. It would serve students well if we emphasize that this practice is does not make a great financial sense and leads them to a debt trap. A bottle of coke purchased off the vending machine for two bucks (via Credit Card) may cost them many fold eventually, if they just make minimum payments.

Thanks

Anita