What you say blackboard in sanskrit?

The Sanskrit term for blackboard is "कृष्णपट्टिका" (pronounced as krishnapattika). In this compound Word, "कृष्ण" (krishna) means black, and "पट्टिका" (pattika) refers to a board or slate. So, when translated literally, "कृष्णपट्टिका" means a black board or slate used for writing or drawing.