How to Use "blackboard" with Example Sentences

1. The box itself opens up into a sort of blackboard .
2. Make lists of these words on the blackboard .
3. Teaching used to be conducted with a blackboard and a handful of tattered textbooks .
4. Outraged , he drew a hideous caricature and pinned it to the blackboard .
5. Parents watch their son draw chinese characters on a small blackboard in a child 's room .