Not so lucky penny?

This week, we returned from spring break and began a very fun and interesting class: Personal Finance!  Yay!  Our lovely teacher, Mrs. Weser, started off this very fun week with a power point on money, what it is, its characteristics and the function of it.  Our thought question was "What is money?"  I don't know about you, but before the power-point I had a very tough time trying to find the words to use to describe exactly what it was.  I always thought of it as just green paper we use in order to purchase items but in reality money is "any good that is widely accepted for the purposes of exchange and in the repayments of debts."  We even watched a video on how a man was able to get a house by trading a bunch of items but started off with a paper clip.  Crazy right?!  Today, everyone opened their own bank accounts in Weserville and received checkbooks!  How exciting!  This activity will help us learn how to write a check and manage our bank accounts carefully.  I honestly cannot wait to get started!  The most interesting part of this week for me was learning about how the penny may actually be costing everyone more money.  I love picking up pennies that are faced up because then I'll have good luck but in reality do pennies cause us bad luck?