1. Open the onion math application and select the "Register or Login" button at the bottom of the page.

2. After jumping to the "User Registration" page, you can choose your identity as "student" or "teacher", then register your user name with your real email/mobile phone number, set the login password with 6-20 digits or letters, and click "Finish Registration" to complete this registration. At the same time, you can also choose "QQ account login" to log in directly.