is there any benifits to having the tiled ceilings? please answer ASAP
It's so they can easily get into the ceiling and do repairs/alterations to the electrical wiring and/or plumbing.
Pencils are easier to stick in that type of ceiling.
The real reason is sound. Lots of kids, lots of little noises. A sound dampening surface helps. If you notice, many school libraries had carpeting for the same reason.
I'm a construction manager who has built a lot of schools. There are several reasons. First is that there are all kinds of wiring and piping and ductwork systems up in the ceilings above your head. In order to hide them, dropped ceiling frames are installed with removable tiles so that the maintenance people can get up there to service the systems. Second, the tiles are acoustic absorbing material to reduce echoing and keep the room more quiet. Third is for temperature regulation, insulating the space and reducing the height of the room to make it easier to cool it or warm it. And of course, there is the extra bonus that you can get a pencil or a spoonful of canned peas to stick to it so it falls on somebody later on (I may be an adult, but I remember being a schoolkid).
