i dont think this is the manga youre looking for, but it has a similar setting. just the jobs for the teachers r reversed and no one wears glasses. jus thought id put it just incase
http://www.mangago.zone/read-manga/himitsu_no_love_sensation/
I will also try to help - I searched for sporty darkhairing teacher and a cuter uke-teacher with light hair
http://www.mangago.zone/read-manga/aozora_no_sunda_iro_wa/
here uke is blond with glasses but the seme is a student teacher.. but here is a big secene about sport... so maybe
http://www.mangago.zone/read-manga/cherry_na_teacher/
dark hair sport teacher x blond uke teacher (without glasses)
http://www.mangago.zone/read-manga/sensei_no_iutoori/
It’s yaoi and about tow teachers the uki with glasses with light hair and i think he is math teacher if i’m not mistake. The seme with black hair and he’s sport teacher. They are teachers in high school. I hope you can help me