In its first report, the group's founder argues that "DLLs have long been ignored in education policy debates."
The longtime educator says English-learners are a population of students who are "historically underserved," but she expects that to change.
Two disability advocacy organizations filed a Justice Department complaint on the parents' behalf, saying that seven Ohio districts were failing to translate documents or provide interpreters.
The president's proposed fiscal year 2016 budget would raise spending levels for those programs to $773 million, an increase of nearly 5 percent.
The request, which is $150 million more than the current federal budget, would allocate nearly $60 million in new funding for repairing schools and new construction.
Classification policies and evaluation tools can vary widely from state to state, and even district to district, leaving widespread opportunity for error.
The study found that the quality of early-childhood teachers' English use is more important than the quantity for developing language skills in young ELLs.
"The Condition of Latinos in Education: 2015 Factbook" pulls data from a number of sources to a give state-level picture of K-12 enrollment and shed light on national advances and challenges for Latino students.
The programs will include instruction in Mandarin, French, Haitian Creole, Hebrew, Japanese, or Spanish, depending on the school site.
An Education Commission of the States report outlines each state's funding mechanism for ELLs, along with differences in dollar amounts and teacher allocations across the states.