English as an Additional Language (EAL) is, in contrast, a ‘diffuse’ curriculum area which is not articulated as a distinct subject or a controversial domain of learning although, like English, EAL crosses all curriculum subjects. Part of an online series on EAL and curriculum subjects, the article discusses how pupils learning EAL apply their developing knowledge of English as well as their other languages in this particular subject area and how the curriculum in English can create additional linguistic and cultural demands on pupils learning EAL, making subject knowledge and understanding more challenging.