If you've been kicking around the education game for any time at all, Bloom's Taxonomy would have grazed your consciousness.
I used the version I found here. (There are a whole bunch of great links and content on that site about study skills). It includes very handy lists of verbs associated with each level in the taxonomy; verbs that the students could link to the wording/requirements of questions/assignments etc.
For senior students, there is real value in encouraging them to take that step back to consider how they learn, and thus how they might develop/improve, and Bloom's Taxonomy is but one tool that helps this process.
PS I know the picture (taken using Hipstamatic!) is a pretty bad pun - but at least it's pretty!