I was a freshman in high school. This was the first flight with a “civilian teacher” (McCauliff) as part of the flight crew. Having watched the disaster live was the reason that the principal (with support from the superintendent and school board) gave the following day off to allow for kids and teachers some time to deal with such a tragedy.
I was a teacher at a junior college for this one. I was watching the TV with live footage of when the second plane hit the WTC. I went to class, but didn’t teach but informed the kids of what had happened (and many thought I was trying to play a practical joke). The Dean cancelled classes for the rest of the week since there were students that had family and friends of their families that actually worked in the WTC (not to mention working in the district).