I'm teaching in a classroom that has two big green chalkboards and no other writing surface. The chalkboards are smoother than the black slate chalkboards and the regular white chalk in the classroom hardly makes a mark. I need to write on this chalkboard visibly. Do any classroom instructors here have suggestions for chalk brands or other solutions?
Seriously, wtf does no one test these before they install them? It's bad enough I'll either have to request a room change or a portable whiteboard or something.