"Okay, Timmy - you can slice this delectable slab of delicious snack cake in half, but Trixie gets to pick which half she gets."
If you were like every child ever born, you probably cut the snack cake in half with a fairness and precision that would intimidate a Hasidic diamond merchant.
I use this demonstration to illustrate the system of checks and balances on which our government is based. The Founding Fathers knew better than to trust people to act against their interest for Society's greater good, so they arranged the Constitution in such a way that it is impossible to do ANYTHING on a national level without two or more branches of government working in concert - for their own reasons.
Anyway, my 8th graders like this lesson, because they get to eat snack cakes.
Three snack cakes @ $1.79 = $5.37