I would say that no, questions pertaining to pedagogy are not appropriate here. This is not a forum about how to teach English, it is not really intended for teachers per se, rather it is about the language itself from etymological and linguistic perspectives, and overall seems to prefer questions about more sophisticated uses of English. Still, that leaves quite a bit of room for some basic questions, which can be deceptively simple, that pertain to using English more generally.
However, that should not discourage teachers from participating. There's a lot of expertise in this community and as a teacher they've helped me to gain valuable insights into the sometimes very complex issues regarding grammar, syntax and semantics, linguistic concepts and descriptive vs prescriptive grammar. Conceptually, there's a big difference between what is needed to understand and use advanced language (etymology, linguistic analysis, advanced vocabulary, syntax and semantics) and what is needed by second language learners (really broad and comprehensive grammatical concepts that are easy to understand and apply but that also remain linguistically coherent).
I've found that in order to accomplish my aims as a teacher I really need a deep understanding of English from a linguistic perspective and I've found the members of this forum to be helpful, well many of them, anyway. But it does seem that there are members here that quite a bit more particular about what they think this forum should entertain.