They should do this for every piece. When this is completed the students will have a topographic map. They then will create a key to enliven the island to make it their own, they can create a self-sustaining community. After they have finished with their islands a standard test on contouring would be appropriate. We appreciate your comments.
Rivers flow downhill, they do cross lines.
The sea is at sea level. Contour lines are always closed . Every point on a contour line is the same number of feet above sea level. Contour lines must be close enough to show contours, but far enough apart to avoid crowding. Asking a student which way a stream flows can help determine whether the student is reading the contour lines correctly.