And it is: writing new lyrics to existing songs. See exhibits A and B in the archives (christmas tunes reconfigured as teacher-laments).
Here are two test-prep/encouragement songs I came up with tonight:
Exhibit C, to the 'tune' of Slim Shady's chorus:
"Find the main idea:
Who did what?
Why and when?
How and where?"
Exhibit D, to the tune of Somewhere Over the Rainbow:
You call all score really high on the big day
If you just get lots of rest and eat a good breakfast.
You can all score really high on the big day
If you just bring lots of number 2 pencils, sharp and ready.
You can all score really well on the big test
If you just concentrate and also do your best.