Why am I going to school if my mobile phone already knows everything As the use of mobile phones is more and more frequent, the problems that why am I going to school if my mobile phone already knows everything emerges in our heart. With the development of technology,mobile phone has a lot of high-tech features which are convenient to us.Now,we can not only communicate with people all over the world through our mobile phones ,but also use mobile phone browser for help when we have problems.Although mobile phones bring us numerous informations,learning knowledge with teachers is very important for us.While we are going to school ,we can learn more knowledge and make more friends .What's more,teachers will teach us how to be a better man ,which using mobile phone can not be replaced. As far as I'm concerned ,mobile phones are only our learning tool,and we should learn the correct use of phones.