The first two tutorials below are highly interactive and can be used as an assignment. The first one, from Clark College, is excellent and has an accompanying quiz (linked below as html)
The tutorials listed here include both text and videos. They can be used to walk students through the process of evaluating a source, in preparation for an activity or assignment. These are just a few examples of tutorials about evaluating sources.
Class activities and assignments used by Johnetta and Meryl in various library sessions. Many include a rubric for assessment purposes.