I'm going to be getting my class set of Superspeed Reading and Math sets ready. I plan to place the sheets in page protectors so I can keep them longer. I've noticed that some of the parts are in color. As much as I would love to print them all out at home in color, having to make 12-13 sets is just a little more than I can handle. I can print them at school, front and back but only in black and white. Is that okay, or is the use of color important to the game process?