The classroom poster
How the game works in one picture, the three things a student needs to know, and a space to write your class code in by hand. Put it on the wall and students who missed the lesson can still join themselves.
Designed to print in black and white, so a colour printer is not needed and nothing disappears without one.
Write the code in with a board pen. The six boxes are sized for it. If you would rather have the code printed for you, the teacher dashboard prints a per-class code sheet with the code and a QR already on it.