5 Types of Supplementary Information Modules
On many pages of this site, you will find icons that take you to modules of supplementary information on the subject of the current page. These icons are colour-coded to indicate the level of explanation (beginner, intermediate, or advanced) provided in the corresponding module. To find out about each of the five types of supplementary information modules provided on this site, click on the corresponding icon.
Note that icons with light-green borders
take you to modules developed especially for this site. Icons without
such borders take you to pages on other Web sites. For a list of
all the modules developed especially for this site, click
The Help (“?”) icon brings you back to this help page from anywhere on this site.