Teacher Mansuma is correct. Teachers teach languages to learners of languages.
The journey otherwise is fraught with misdirection, mininformation, inconsistencies and mistakes. These slow down, confuse and disorintate the learner.
Every hill often has several ways to climb it, but the wise know which routes which are the best for each climber; and why.
I've been helping Chinese to learn English for 14 years, face to face and online. I lived in China for 10 Years. And I have been teaching adults, young adults and children for 30+ years.
Maybe I know a thing or two about that which I speak.