Arizona passed an English Immersion program in the 01-02 school year but the contention is just starting:

An East Valley technical school is prohibiting students from speaking Spanish in class, a move a Phoenix attorney said oversteps Arizona's English-immersion mandate while highlighting the challenges of implementing the controversial law.


The law clearly states that all instruction needs to be in "Structured English Immersion." But teachers can use a student's native language to clarify terms. It purposely omits the issue of students speaking other languages to steer clear of civil rights challenges, ....

"But many teachers still mistakenly feel English immersion means everything has to be in English, which is not the law," .

This will be interesting to follow.