I use tallies to communicate numbers with my illiterate, non-German speaking students. Easy, I thought before the first time I tried it. I had to learn that tallying – you know, four vertical lines and one diagonal one signifies five – is not a universal concept. Even the ones that had some schooling do not know the concept. Quite a few have a hard time understanding and learning it.

PS _{^{re: the title – Yes, I just had a famous episode of Star Trek on my you tube feed.}}

Ragtag Daily Prompt: Tally