A compass is useful for many different subjects for measuring and drawing circles with accuracy. You need the right tools for doing your work and we most certainly have the compass you need. Get a Demonstration compass to use on white or chalk board to show the whole class the math problem. For younger students get a Safe-T compass so not to worry about the pointed tip and it is easier to use. Our other tools come in different colors, metal or plastic, has safety ball bearings and other features to fit your specific needs. Buy replacement pencils in packs of 12 or 36 so your class never runs out.