In grade school and high school we use to always get yelled at if we had headphones in or gum in our mouth. Kids would do it just to see if they could get away with it. But some other students it really did help them focus. There have been many studies about chewing gum during tests. It keeps students focused, even just the minty smell has an effect. As I went into high school they were becoming more lenient with the gum chewing. Now my sister is a senior and she is allowed to have her ipod and headphones out during work time. Its amazing how quiet a classroom can be when they all have their headphones in. It makes a better environment for all learners. I just think its crazy how technology is changing the world today.