I worked with children with Special Needs, some verbal and some non-verbal. It was important to let them understand verbal commands by the tone of your voice. It was very helpful to not get excited because based on your voice and emotions could depend on the outcome of a situation. I found most Retarted children love to be encouraged just by saying "Good Job" or "I am so pleased with you" made a world of difference. I worked for Ms. Bees Summer Camp and Respite Service which had children with different disabilities. I feel even when talking to parents concerning their children it was important to be ready to change you tone in your voice. The parents did not need someone who did not have compassion in their voice.
In my Labs in College you must read stories to the children in such a way that will catch their attention. You had to make the story come alive. each character had to be real to them and something had to impress tem in order to heplp them learn and remember certain facts. Illustrations help but the voice is so effective when reading or telling a stories to Pre-Schoolers. I once did a lesson with a tape-recorder the children were amazed how their sounded. It was done to help them understand the different types of voices, and how they could identify each voice, how voices tell a lot about a person for example where the are from.
I was a secretary for several large companies in New York when I was younger, for example McGraw-hill, EF Hutton, Agency For Child Devekopment. A large part of my job was to answer the telephone for at least two or more men. It was very tricky at times as well as fun. It was important to be honest, and convenience the caller you wanted to really be helpful even if at times you really did not. I retired from Chase Manhattan Bank and decided to go to school. I moved to California and then to Savannah. Georgia.