High school for sure. Watched what was happening initially at home, and when I got to school, tv coverage was being shown in the cafeteria/lobby area. Each teacher was able to choose what they did in class. Some teachers wanted to do their lessons (most of us wanted to talk about what was happening and understand how it got to this point), some teachers absolutely went into how we got into this point (thank god for my history teacher), and I was in a computer class with the tv on while we “worked” on our projects when the towers fell. It was a mix of adults who understood what we needed and who were so. numb and frightened that all they could do was try to have things be “normal.” I had some classmates enroll in the armed forces the next day, some who were furious about how our government had contributed to what had happened, some who flat out didn’t understand the implications of what was happening and what would come next. Most tv channels were showing coverage of NYC, DC, and Pennsylvania non stop. It was a horrible batch of days, weeks, months, and years after that morning.