International Bureau of Education, United Nations Educational, Scientific and Cultural Organization--Site Map

Pretty cool resource. Click the title link to be taken to the page.

You can also find other UNESCO resources here, including the other modules like the one I have listed under "free pdf's/Social Work--The Basics. The specific page for the modules 1-10 are found here.
A complete list of all the toolkits available are listed here.

International Federation of Social Workers is also another great resource available.