Some 20 schools around the country are experimenting in bilingual or immersion techniques.

BBC: Curb on schools' languages innovation

Virginia Collier and Wayne Thomas from George Mason University in Virginia studied more than 6 million student records and found that full-immersion bilingual programs in which native and nonnative students are given instruction in both languages are the most effective.

NPR: Instruction Of Students Learning English Bleak

The proposition mandated that these students take English immersion classes, unless their parents specifically requested that they continue traditional bilingual education programs.

FORBES: Fact and Comment