Sound travels in waves, much like those that roll across the ocean, to give our ears information which we may or may not understand. These sound waves are very much like those that light uses, too, whether it’s the (mostly) steady flow of light from the Sun or spectacular 4th of July fireworks which combine light and sound for an amazing night of excitement. But sound waves are also used for communication amongst humans and amongst other life forms to tell about important things (Predator coming!) and not so important things (the bus is late—again!).
One of the first things hearing parents ask themselves when they discover they have deaf children is how they will communicate with them, and how, eventually, will their children communicate with the world. The decision is not an easy one. There are many factors to consider, including how much hearing remains, whether or not a cochlear implant will be an option, and whether or not the child has additional educational issues. Proponents of each communication approach have what seem to be ironclad arguments as to why their way is the best.