What explains the academic growth of the new ELL student in both L1 and L2?

The academic growth of a new English Language Learner (ELL) in both their first language (L1) and second language (L2) can be effectively explained by the concept of cognitive development in L1 that transfers to L2 academic language. This phenomenon highlights how the skills, knowledge, and cognitive strategies acquired through learning in their first language can be beneficial when learning a second language.

When students develop a strong foundation in their first language, it can enhance their ability to grasp concepts, vocabulary, and structures in their second language. This transfer of knowledge facilitates quicker understanding and mastery of academic content in L2, leading to overall academic growth. Thus, the student's cognitive development in L1 plays a critical role in their ability to succeed academically in L2, showcasing the interconnectedness of language learning and cognitive processes.