This set of 3 guides is helpful when learning new computation algorithms or as an accommodation for students with special learning needs. The first page uses alternating grey and white rows, which is helpful for students with perceptual challenges. For some students, plain white can seem to blend together and make the numbers look jumbled. This page also uses horizontal and vertical lines to help align the problem, and separate the digits to allow for successful computation. The 2nd takes out the horizontal lines, for when the student is able to align a bit more on his own. The 3rd takes out all the grid lines leaving only the grey and white color change lines.
Start with page one and work the students down the steps to three, then they may be ready to go to regular lined paper, while some students may always perform better on this grey and white page. Take out the alignment, and perceptual challenges and a student can focus on the steps of long multiplication or long division. These are a great way to teach young ones how to line up addition and subtraction work. Don't save this kind of thing for kids who struggle; it can be useful for all.