Advantage: If your classroom is attacked by an armed psychopath (which, unfortunately, is does happen now and then) it is very handy to be able to phone for help or to give updates on the situation.
Disadvantage: If you are on the phone chatting with your friend when the teacher is trying to teach you something, then the cellphone is detracting from your education.
The advantage of using a cellphone is that it is portable and affordable. It therefore makes communication easier and faster. The disadvantage is that it may lack privacy and may be very costly.
Mad People.
Yes.
Technology in the Classroom An Inside Look - 2014 was released on: USA: 20 February 2014
The World of Geography Inside the Classroom - 2013 was released on: USA: 5 April 2013 (internet)
Chalk
the reproduction asexually are at a disadvantage because it reproduce in majorities inside a cell and the male to thought out the sperm who is inside him
the reproduction asexually are at a disadvantage because it reproduce in majorities inside a cell and the male to thought out the sperm who is inside him
I beckoned her to come inside the classroom.
A Paternoster Elevator are a chain of open compartments that move slowly in a loop up and down inside a building without stopping. The advantage of this is that they can carry more people. A disadvantage is that they are more dangerous.
Everyone could be helping each other. Or anything that you would think as good outside a classroom, would be the same thing inside a classroom.
A magnet should have no effect on a cellphone. There is nothing inside a cellphone that would be "messed up" by a magnet. Perhaps you could clarify what happened.