As a 5th-grade teacher, I have loved using MathReps Workbooks by Wipebook for our math warm-ups. Students find it easy to use thanks to the reusable pages for practice. It really helps students to be able to erase and try their answers again. Some students worry a lot about making mistakes. Being able to fix these mistakes quickly helps boost their confidence.
Using the Wipebooks Flipcharts, teachers began working out their problems, discussing the problem, drawing, writing, and erasing as their discussions changed. I noticed that teachers were more liberal with their writing and editing of problems since the Wipebook made it easier to correct their mistakes or change their work product.