Communication development for young children includes learning the skills to understand and express thoughts, feelings, and facts. Understanding communication begins before birth (during pregnancy) and continues through life when a kid hears, perceives, and interprets information from other people. The expression of communication or a child's language begins with head, eye, and body movements, as well as with simple vocalizations and hand motions.
Language expression progresses to words, sentences, and conversations through many means, including gestures, spoken words, sign language, visual language systems, and communication boards. It is necessary that a child have one of these functional forms of expressive language before going to kindergarten. Bloom (1988) describes communication development as guided by the desire for relevance (i.e., communicating what is essential), discrepancy (i.e., seeking to create consistency of information), and elaboration (i.e., learning more complicated language skills).