svart tavla angolul

blackboard [blackboards]▼(a surface that can be written upon with chalk)
noun
[UK: ˈblæk.bɔːd] [US: ˈblæk.ˌbɔːrd]

chalkboard [chalkboards]▼(slate board for writing on with chalk)
noun
[UK: ˈtʃɔːk.ˌbɔːd] [US: ˈtʃɔːk.ˌbɔːrd]