Here's the dilemma... I wasted so much paper (and TIME!) making photocopies every week for my students during their math center rotations. I really liked what they were doing for work... but the paper waste was giving me migraines. Essentially, during every day's math block we have a period where we rotate 3 times. At station C you are suppose to be at your desk working on a packet of worksheets that I had made. It was mostly practice of their basic facts and computation, mixed with other more creative worksheets like number stories etc... (for example, we learned how to multiply 3 digit times a 2 digit, so I would give them a worksheet full of those problems to practice). At times it was 5 pages a week for each student... TONS of photocopying. I was thinking of laminating the worksheets to make master copies so students would have take a master, bring it to their desk, and copy the whole number sentence/number story/etc to lined paper and then solve. If I want them to practice 4 digit subtraction with borrowing, I would only have to make enough unique worksheets for each student... So if I have 20 students... 20 different subtraction worksheets... one student takes "subtraction worksheet #7" for example.. and when he finishes, returns it to the bin and grabs a new one. If they traded in one a day... it would be 20 days of strictly subtraction, which obviously is MORE than plenty. I was thinking I could do file folders like this... but i'm thinking the laminating would be too involved/expensive. A simpler version of file folders would be a double sided worksheet... front has a decorative cover and instructions, back has the problems to solve..??? Thoughts??? Other suggestions??