Mrs. Rosenberg's entire class had math folders that they were not using. Brianna and I collected those math folders and created addition and subtraction worksheets to put into the folders. The teacher will have a plastic slip for each folder, and place a worksheet for the student to work on based on their progress. The students will complete the worksheet with a dry erase marker, and erase their answer once they are finished. Each worksheet increases in difficulty, so that as the year goes on they can master a difficulty level in addition or subtraction and then move on to the next level. I personally think this is a great idea for the classroom because it accommodates all students on all different levels of learning