1, different uses: the red blackboard is used to show teaching content or record and show topics at meetings, and the red and black list is used for evaluation and ranking.

2. Different forms: The red blackboard is a writable plane, which can be written with white chalk or colored chalk, or the electronic information can be directly displayed on the red blackboard with a projector. A red and black list is a list or table used to record and display information such as rankings or scores.