Here's a basic lesson on reading a compass. Learn the names of the parts of a compass. Learn how to read a bearing in degrees. Then go outside and follow a course of cones set up on the grass or in a clear area. Starting at one cone, face the next cone and write down its bearing. Then walk to the second cone and face the third cone and write down the bearing of that third cone. Set up as many cones as the class might have time to do.