Signing systems that attempted to represent spoken language via manual signs -- some invented, and some borrowed from natural sign languages -- have historically been used in classrooms with deaf children. However, despite decades of research and use of these systems in the classroom, there is little evidence supporting their educational…

Advocates of bimodal bilingual (Bi-Bi) early intervention argue that both visual and auditory communication systems reflect optimal family and educational interactions for teachers, families, and their young children with hearing loss. The primary objective of this commentary is to highlight semantic variations noted in theoretical, ideological,…

In 1924 Jabbar Baghcheban created a manual system that employed the phonetic characteristics of spoken Persian and Perso-Arabic orthography for use in the education of deaf students (Ibrahimi 2007). This article is a first exploration of variation and change in this system as it has evolved into the Iranian manual alphabet. Data on the…