Alle elementari diremmo semplicemente "inglese", o "italiano"... Se lo devi "localizzare", allora in effetti diventerebbe "italiano".

"Language Arts (also known as English Language Arts) is the name given to the study and improvement of the arts of language. Traditionally, the primary divisions in language arts are literature and language, where language in this case refers to both linguistics, and specific languages.[1] Language arts instruction typically consists of some mix of the components of reading, writing (composition), speaking, and listening[2]. In schools, language arts is taught alongside Science, Mathematics, and Social Studies.[3]" - http://en.wikipedia.org/wiki/Language_arts