text: As time went by, more and more function appear on the cell phone can make our student and adult's life easier. Some cell phone can even go to the internet! Some people can use cell phone as a material to find resource, study online, and read books online instead of carry those heavy books home. Cell phone is simplification for many thing you do, it can not absolutely replace books, but it makes easier for people to read and study. If we can let the student to bring the cell phone to school and only let them use it during free periods or lunch time. I'm sure that it would benefit both our student and you.