How well do dual immersion programs serve English Learners?

Link to the referenced original EdSource article

This article confirms decades of research findings on the effectiveness of Dual Language programs for English learners; that is that initial scores for English learners on state exams (Typically 3rd grade scores) may be lower than state/national averages but by 5th/6th grade students surpass the state/national averages.

The article also states that achievement varies from program to program and some may need to make improvements to ensure students, especially English learners leave the elementary programs proficient in both English and Spanish. Dolores Huerta International Academy in Fontana Unified, Fontana CA is highlighted in this article.