![](https://blog.educator.com/wp-content/uploads/2020/07/Math-in-Art-–-15-STEAM-Projects.jpg)
A math compass is used to draw perfect circles. The compass works with a sharpened pencil inserted into the cam lock. A sharp, pointed tip rests on the paper that the circle will be drawn on, and you rotate the top of the compass to create a circle of a certain diameter.