It probably means that the lecture style needs to be changed to more participatory teaching activities: debates, group discussions, critique one another's writings, etc.
I think one important lesson that college students need to learn is how to do boring things. It's part of being a grown-up. As adults, we often have to attend boring-but-important meetings, or even fight against dozing off during presentations at conferences--presentations that struck us as interesting in the first place. I employ the various, participatory techniques iris411 names, but I also wholeheartedly believe it is my job not just to teach history, but to impart other life lessons during students' transitions into full adulthood. Learning how to work hard and complete boring tasks is one of those life lessons.