The general term for this is ghItlhwI' 'echlet, which can be literally translated as "marker board." It can be used for any of these things. There is, in addition, a term for chalkboard or whiteboard or any similar surface that can be erased and reused: teywI' 'echlet, literally "scraper board." Maltz thought it was interesting that the general term focused on the means of putting something on the board (ghItlhwI') and the specialized term focused on how you get rid of it (teywI'). (qepHom 2020)