Interesting to see actual blackboard with writing written in white chalk. You rarely see that in the UK because allergies and asthma suffers it is not politically correct most schools use drywipe white boards.
We may be forced to go back to the old individual slates! :o)
I don't have a problem with the chalk but I sure get asthmatic around those dry-erase markers for white boards.
Glad I'm not in school any more.