I didn't have a lot of textbooks when I taught math and so I made my own practice sheets. I tried to make it as practical as possible for my students who struggled and compared to money. I found that teaching them to round made it easier for them and me! When I taught math, I had to break down the steps even more than most worksheets to help students with learning difficulties. I found that using visual aids helped. I often had older students and took out some of the childish graphics whic