Mrs. Chen is a teacher from Chizhou. She asked her students to hand in their homework through a QR code(二维码).
The QR codes can be sent to Mrs. Chen by email, QQ and Wechat. When Chen scans(扫描) her students'QR codes, their homework appears(出现) on her phone. She finds that their homework becomes more creative (创新的), with many pictures, music and even videos. Mrs. Chen can check their work everywhere using her computer or telephone.
Chen's students think it is interesting.
"The paper is not easy to keep , but the code is easy to keep and share." Chen said. However, some parents are worried. They are afraid that their children will spend too much time on computers and less time on schoolwork.
But in fact, it's unnecessary. Students still need to look up information in books and write it down when they do their homework. They only use the code when they hand in their work.
