I am looking for a way to add hints to compound problems. I am thinking of the simplest type of hints: those that appear after several failed attempts to give the answer.
It seems like the macros "package.pl" and "ImprovedCompound.pl", which, I think, come out of Prof Petruccelli's group, support hints. But there is no documentation and I can't figure out how to control the number of times before the hint is shown and the number of times before the student is forced to move on to the next section.
Anybody has experience with these?