Okay, now I am really confused?!?
Emilee, before we think that you are doing something completely wrong or start to blame your instructor, here is a PDF from X-Rite, the people that make the color checker passport.
It explains the reasoning for color balancing and white balance and all that stuff. Obviously, they promote their product, but the information is pretty solid.
I would suggest to you to start shooting in RAW, and getting better control over your images in post to alleviate any future issues. Trust me, it helps.