I taught for several years in a Spanish-English (only) program, and now am being asked to help design a curriculum (and possibly teach) for a multi-language program focusing mainly on East and South Asian languages (with some Spanish and possibly American Indian languages also).
Basically, I'm curious how you could have T&I courses where the instructor doesn't speak both of the students' languages (I mean, I'm assuming they'll all be English-X or Spanish-X, but X could be Mandarin, Arabic, Navajo, Mixteco...). How do exams (etc.) get graded? What is the focus of the courses? What books are used? (And if anyone would be willing to talk in more detail by email, I'd be eternally grateful.)
Cross-posted to interlingual and linguaphiles