An understanding of, and ability to employ correctly, the rules which govern language, such as phonetic rules, spelling, syntax, and grammar. In the context of the national curriculum, KAL is normally integrated into the pupil's learning experience across all subjects, rather than formally taught through structured exercises in English grammar, as used to be the practice up to the middle of the 20th century. To facilitate this integrated approach, KAL is now an integral part of the National Literacy Strategy. The theory is that a learner will draw upon the knowledge they have gained about their first language when they begin to learn a new one. Their ability to name the parts of speech, such as nouns and verbs, for example, will facilitate their study of a second language by providing a frame of reference and a set of underlying grammatical rules.
http://www.standards.dfes.gov.uk/primary/publications/languages/framework/kal/ A list of ways in which KAL can be applied to the learning of a second language in Key Stage 2.