Language is natural communication system, and speech is language in action. The first three years of life are the most intensive for child's language and speech development. Child's linguistic competence and language and speech development are influenced by the various factors such as innate abilities, developed speech- auditory device, interaction with adults and peers, media and child's self- activity. Phonemic awareness development present the part of developed language and speech process. Between the age of five and six, phonemic awareness has the biggest increase. That is the age when child starts to understand that the change of one sound in a word, or the change of their order, changes the meaning of the word itself. Most children, at the age of seven, have developed phonemic awareness, so they successfully solve phonemic tasks of analysis and synthesis. Less children of that age have difficulty solving tasks of phonemic awareness and phonemic hearing. If the child does not develop some of the skills in a particular age period, it does not mean they have a disorder. Preconditiom of the reading and writing skills development are pre-writing and pre-reading skills, which can be a clear sign of eventual difficulties during pre-school and school age. This bachelor's thesis starts from the scientifically proven assumptiom that both writing skills development and phonemic awareness are connected. Researchers proved that practicing phonemic awareness in early age contributes the development of reading skills, as well as formal teaching of reading contributes the development of phonemic awareness.