A presentation board is a necessary tool in the classroom. You can keep the Trend Enterprises Wipe-Off Chart Graphing Grid T-1092 in your class to present, demonstrate, explain plans, and so much more. The board is reusable since you can wipe it off after you are done writing on it. A wipe-off board is useful for every class in every grade. We consider it to be a classroom essential. The gridded board is perfect for presenting information in separate lines or in a table format. The grids also give a better surface to draw a picture than the plain white board. It's great for young students, as they will find the lined board helpful to keep their handwriting in line. The board is especially effective in geometry class, where you can use it to demonstrate graphical figures. The bonus is that it is easy to keep it clean! The writing easily comes off by simply wiping the surface. Keep it clean after every use and you will be able to use this item for many years to come! One or two days a week, clean it with alcohol based cleaner.