Dual language students interact with same-age peers doing meaningful tasks together across all curricular subjects. This is not a separate, segregated program only for English learners—all students work together, teaching each other, benefiting from learning centers, small-group, and pair work in cooperative learning activities. The students proficient in Spanish (for example) are the “experts” during the instructional time in Spanish, and the English-proficient students co teach their peers during the English instructional time.