Phonology

Phonological development (or phonemic development) is the gradual development of an 'organised', adult-like system of sound contrasts. Phonological development is thought to have three aspects (Ingram, 1989a): the way the sound is stored in the child's mind; the way the sound is actually said by the child;

Retrieved from https://www.google.co.nz/?gfe_rd=cr&ei=97_tV4HIO9TN8gf19oBg#q=wikipedia+phonemic+awareness  30th September,  2016