to learn to hear the oral language. List of signed languages Below are some of the signed systems that have been developed for various oral languages. They range from formal systems that encode the grammar of the oral language, to informal systems of using sign together with speech, to translating oral words one-by-one to sign. See Australian Aboriginal sign languages for traditional manually coded languages such as Warlpiri Sign Language. See also Contact sign — a variety or style of signing arising from contact between a spoken or manually coded language and a deaf sign language. Fingerspelling — a means of representing the written alphabet of an oral language, but often a central part of natural sign languages. Makaton References ISO 639-2 codes for "signed oral languages" (e.g. Ethnologue Table C) Cued Languages – list of languages and dialects to which Cued Speech has been adapted. Sign Languages and Codes of the World by Region and by Name – Gallaudet University library online Rehab Council of India Kluwin, T. (1981). The grammaticality of manual representation of English in classroom settings. American Annals of the Deaf, 126, 417–421. Marmor, G. & Pettito, L. (1979). Simultaneous communication in the classroom: How well is English grammar represented? Sign Language Studies, 23, 99–136. Woodward, J. & Allen, T. (1988). Classroom use of artificial sign systems by teachers. Sign Language Studies, 61, 405–418. External links Cued Speech: General Information, Resources, Events, and Classes Reordered languages Education for the deaf