Is #steemstem really the best place? You could argue that language is an obvious extension of math, but then, what isn't? Perhaps a tag like #steemlang would be better?

There's a lot of stuff tagged #steemstem. It might work better to differentiate from the rest of the STEM content with a new, more specialized tag specifically for languages...

Whatever you go with, I wish you luck. I can't seem to find enough time to post regularly, so I don't know that I would be able to help in this interesting endeavor, but I'll definitely be peeking in to see how things are going.