June 7, 2015: Blackboards from 1917

[Sundae]

Originally Posted by glatt

My H.S. geometry teacher used a board compass all the time.

/\ This was my experience. /\

In fact the board monitor for the week, who usually only got to use the eraser (although spanking it outside was fun) and check there was enough chalk available, was always highly gratified if called up to prepare a chalk circle during a lesson.

I remember being sick with jealousy when we started to learn about Venn diagrams after I was board monitor. I never forgave Mirella C for that. Well, okay, I did. But it rankled for a long time.