The use of sign language has a long history. Indeed, humans' first languages may have been expressed through sign. Sign languages have been found around the world, even in communities without access to formal education. In addition to serving as a primary means of communication for Deaf communities, sign languages have become one of hearing students' most popular choices for second-language study. Sign languages are now accepted as complex and complete...
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Allied Health Professions Audiology & Speech Pathology Behavioral Sciences Child Psychology Cognitive Psychology Communicative Disorders Developmental Psychology Education Education & Reference Foreign Language Study & Reference Health, Fitness & Dieting Health, Fitness & Dieting Language Arts Psychology Psychology & Counseling Special Education