One of the teachers in the English department put up a kick-ass bulletin board yesterday, boldly colored, immaculately arranged, bursting with student pride. At lunch, this led the older teachers to reminisce: thirty, even twenty years ago, bulletin boards were hot pedagogy, like sliding walls and slide rules.
In fact, you can measure educational ideologies by the technologies they spawn. The sliding wall came out of the team-teaching blended classroom movement, which was progressive for all of five minutes, and profoundly distracting for the rest.
I'm too young for such nostalgia, but I anticipate the day "blog" is as incomprehensible as "Log Log."