Everything They Every Taught in School is Useless...

because they just keep changing it.

I missed the part where Pluto wasn't a planet, but apparently they are going keep it and add a few.

Of course the phrases we all used to memorize the planet order don't won't work anymore: My very elegant mother just served us nine pies

Now we have to add 2003 UB313 (Zena), Charon, Ceres.