Background: While the concept of translanguaging has gained significant traction in education in multilingual contexts, it is also debated and contested. Claims are made about what translanguaging can and cannot do, how different it might be from code-switching, whether it arises from a single repertoire of language resources or from use of…

In many countries, children need to become proficient in both their home language (L1) and an international language, such as English (L2). Governments face tradeoffs in how to prioritize these two objectives. We provide empirical evidence on cross-linguistic transfer between L1 and L2, using the results of two randomized evaluations of Structured…