• CoMPASS is a hypertext system that uses two representations—concept maps and    text—to enable multiple passes and to support navigation and learning.

• Each page in CoMPASS represents a conceptual unit such as force or work.

• The left side of the screen shows a concept map and the right side shows the    corresponding text. The maps are drawn using the fisheye technique.

Figure 1. Fisheye showing force as focus	Figure 2. Fisheye showing work as focus