Signing

My four-year-old son's preschool had its Spring Concert today. The parents saw a simple show where the preschoolers sang a lot of fun songs. One part I liked was when the kids sang while signing. It was interesting watching the kids communicate the song orally (through their voices) and visually (through their hands). Sign language is another method of communication. It makes sense for humans to have alternative methods of communicating because we are social creatures with a great need to express ourselves. We have to interact with others in society and if one way is blocked, then we will find another way.