Is your schoolbag too heavy to carry? The e-schoolbag will help you. In fact, the e-schoolbag should perhaps be called an e-textbook. It is a small computer for students. Heavy schoolbags have been a serious problem for them for a long time. But the e-schoolbag will change everything. It is much lighter than a usual schoolbag. Also, it is as small as a usual textbook, an exercise book and so on. They can be made into _ that are as small as a stamp. The students can read the text page by page on the "screen", take notes, or even send e-mails to their teachers. All they have to do is to put the right chip into the e-schoolbag and press the button. It is said that e-schoolbags have been put into use in some Chinese middle schools. In 2012, some students in Shanghai started to use e-schoolbags in the new term. Some say that e-textbooks can be easily broken. Some say it is not good to students' eyes. But only time will tell us all. What's the best title of this passage?
To Put the Right Chips In. The Big Problems. A New Kind of Schoolbag. How to Use the E-schoolbag?