Class Code
By having students enter the Class Code, you can add students to the class afterwards, even if unregistered students attend the lesson.
Note: Teachers cannot join a lesson using the Class Code. Please join a desired lesson from "Add Subject".
https://gyazo.com/948312f89c92db1b3abfcb8b05850e06
▼How to Enter Class Code
https://gyazo.com/594ebfd7f5a063dfc767b37e644776bf
Reference