On not assuming we speak the same language

For last six weeks, I've made a point of asking college newbies whether they've heard an expression "a library catalogue". Very few, certainly fewer than one in ten, said they did. They were surprised, and I am surprised too: it has taken me seven years to appreciate an obvious fact that I speak a different language, than my library users do.
As part of library sessions, I now ask whether people have seen Argos catalogues; virtually all have. I ask what is the purpose of those catalogues; with no exceptions learners correctly say: to show what the shop has to offer and how to get it.
Exactly the same is true about the library catalogue which is not on paper, but online, - I say - just like a search box on the Argos website.
And then we dive into the deeper waters of locations, shelfmarks, accessions, reservations... - I wonder how many of those words cause cognitive dissonance in our users.

On information skills, facts and opinions

At library skills sessions, when asked why colleges and universities encourage use of books, Access students often repeat: because we have to rely on facts, not opinions. If this was said only once, it’d be ok as a somewhat limited interpretation of what, perhaps, the student heard in the classroom.
Unfortunately, this is repeated again and again without qualifying: reliable facts, unfounded opinions. It appears learners hear in our classrooms that facts are in opposition to opinions.

It is not true, of course, that facts are in opposition to or better than opinions. Facts themselves are interpreted knowledge: what we regarded true a century ago may not be true for us now. Knowledge develops; at the same time we, individually and collectively, develop biases or get rid of them and so on. Opinions not resting on sound knowledge are useless. At the same time, it is not difficult to see that what we call facts, at large extend are underpinned by values and opinions; at the same time, facts inform those values and opinions.

By giving simplistic answers to students, we confuse them: they can’t make sense why what is found on the internet may be less reliable than what is found in books (do we, educators, really believe that either?); they can’t explain the value of blogs, they remain suspicious and sceptical about us, educators, and about their own abilities to make sense.