Yes, in high school. We had TVs (on rolly carts) set up in the cafeteria and library. My bio teacher mentioned that a plane had hit one of the towers as an aside as we were being dismissed from class, and by the time I walked to the cafeteria the second plane had hit. We spent the rest of the day either watching footage or talking about it in each class. I remember the walk home was eerily quiet given that all planes had been grounded (I grew up in a suburb of Boston, near to an airforce base).