What is the name of the sign at the door of the class?

Class signs or motivational placards.

There are also electronic class cards now.

It is a smart device hanging at the door of the school class. It can not only be used as a platform for students to display, but also can be used to popularize scientific knowledge, expand subject knowledge, broaden students' horizons, display class characteristics, and truly provide Class management and student growth services have become the "new favorite" of teachers and students.

The emergence of campus electronic class cards has enriched the content and expression of class cards, and is a new way to build school class culture and moral education culture. Students can also see the school's recent important event announcements through electronic class cards, and can also participate in replies, so that students can keep abreast of campus and class dynamics.