I was still teaching at the time (middle school, 8th grade). I had to call the media center for something that was probably mundane and they told me what was up. I turned on the TV in my class and just watched with the kids. I did that throughout the rest of the day. Turned the TV off to teach my lesson, then turned it back on when they were working independently. There was a lot of quiet talking among the kids and several questions that I really didn't know how to answer, but still gave the kids a chance to watch and try to comprehend exactly what was going on. The next day, I didn't take up homework and totally retaught the previous day's lesson because it needed to be done that way. One interesting thing - there were 2 Muslim students in the entire school, that most folks, including staff had no idea about until 9/11 happened. When the rumblings started about Muslims and primarily Muslim countries being the perpetrators of 9/11, the kids at the school really rallied around these 2 students, acting as protectors and just being good friends because they were really "hearing it" about their religion from the national press, local press, and general local loudmouths. I still see these 2 to this day - great guys and working in the community to make things better.
One thing that I'll always remember: I ran a LOT back in the early 2000s. That night, I went out for a quick run just to clear my mind, get some fresh air, and just to get away for a bit. It was clear as a bell, much like today is and how I'm assuming tonight will be, and all I could see in the sky was stars. No planes crossing, no strobes flashing, nothing. Just the stars. It was eeeeerie....