It’s more common for schools to group English-language learners into classes according to their level of English proficiency than to mix students with a wide range of fluency levels in the same class, particularly for English class.
But an article in the March/April issue of the Harvard Education Letter tells how three high schools are taking the less-common approach of using heterogeneous groupings.
And if you want to read more about the same topic, see a Dec. 5 article I wrote for Education Week about Brooklyn International High School. That school teaches English-language learners with different levels of fluency in the same classroom, and takes that instruction to a level that I’d never observed before at any other school.