Send a note to the teacher: "Then what do we need you for?"
That's a great idea, actually.
I already wrote a "love note" on the Spanish class packet. They provided a list of supplies needed for the class. In Spanish, of course.
No translated version anywhere to be found.
Even though I can easily read it, I didn't. I just wrote "How about providing us with this in English?" on the top of the page.
I'm no immigration-basher, but things like this DO bother me because my parents worked their butts off assimilating and learning English. It's not fair that the new folks getting here get everything baby-fed to them.
If they won't do it for themselves, make them learn it for their kids' sake.