Cummins' Linguistic Interdependence Theory

Cummins' Linguistic Interdependence Theory suggests that a student’s development in one language can positively affect their skills in other languages they know. Essentially, the theory emphasizes that a strong foundation in a student’s first language (L1) supports learning a second language (L2). Proficiency in L1 provides cognitive and cultural benefits that transfer to L2 learning, making it easier to develop skills across multiple languages. This interdependence highlights the importance of valuing and strengthening students' first languages as a foundation for broader bilingual or multilingual education.