Students write on white lines, and their "editors" (teachers, parents, fellow students) make corrections and comments on the yellow lines. There is a yellow box on the bottom of each page for detailed explanations, spelling reminders and other tips can be written in the box at the bottom of each sheet. Lines are numbered for easy reference. 50 double-sided sheets per package. The Value Pack contains E-Z Edit Paper 6 per package. Ages 5+, Grades K+.