I too was in 7th grade study hall on that day. It was a rather chilly, grey and gloomy day outside. Since it was study hall it was pretty quite anyway, but I remember our high school principle coming into the room. He always wore these soft rubber sole shoes so he didn't make any noise as he walked,( it is funny the little stupid things you remember about a huge event like that.) I don't think there was much commotion in the room before he came in but, of course it became totally silent as he walked to the study hall teachers desk. He simply turned and faced the classroom and said," President Kennedy was assasinated in Dallas Texas. He died at 1:00. I still can see the clock above him showing about 1:30.
There were doors to 2 adjoining classrooms in study hall and I he went into each classroom and repeated the exact same message to each of those rooms. The silence was stunning. They were able to scramble up a few radios to put in some of the rooms and we all sat listening to the network bulletins and coverage. As with Dryburn, school was dismissed as soon as they could get the drivers in. By the time we got on the bus is the weather had turned to light showers with snow mixed in and I can still see the fogged up windows on the bus sitting next to my friend Bob as we rode home. (Again, funny what you remember.)
That evening the networks had live coverage of the plane bringing the President back from Dallas and the casket being lowered from the plane for the awaiting ambulance. Even in the black and white TV picture we had then, you could see the dark stains (blood) on Jackie's dress, and later that evening newly sworn in Lyndon Johnson came on to speak to the nation. Again as Dryburn said the nation watched live as Jack Ruby shot Oswald. Even as a kid I remember wondering what had become of our nation as you watched things unfold live. Since we had just gotten out of the Russian missle crisis, there was speculation if they or some other nation would try anything against us with the seeming chaos of that leadership change.
My parents can tell you everything about where they were and what they did after Pearl Harbor, and my kids can do the same with 9-11. Again, it is funny what you remember from events like these.