Aren't there other means for making spoken words visible?
Spoken words can of course be made visible in the form of writing. However, writing is neither convenient nor even practicable for the purposes of face-to--face communication with very young deaf children. Therefore, instead of using pen and paper for these purposes, the hands have been used in different ways to represent spoken words. In addition to Cued Speech, signs and fingerspelling also make use of hands to represent spoken words. These three ways of representing words visually with the hands are the equivalents of the three forms in which spoken words are usually represented in writing (i.e. syllabic writing, ideographic writing and alphabetic writing).
National Society for the Deaf