Full - time positions are competitive, and a significant percentage of classes are taught by part - time faculty members. (sciencemag.org)
Another shift requires schools and districts to create programs in which classes are taught in two languages. (nytimes.com)
In high - poverty schools, 27 percent of classes are taught by out - of - field teachers compared with only 14 percent in low - poverty schools. (americanprogress.org)