The school has it's own schoolbus which can bring students to a few different locations. With WeChat you can book your bus tickets for a certain day and time. It's easy and cheap.

Shanghai has a very well developed Metro system, with 14 different lines that can bring you to every corner of Shanghai very quickly. A metro ticket can be bought with cash, and some systems accept payment with Alipay. A ticket will cost between 3RMB and 10RMB, which makes it a fairly cheap option.