Phoneme Development

According to research there poses some variability in overall criteria based on studies completed yet general agreement yields a few overall conclusions about the acquisition of individual sounds (phonemes):

•Nasals “m, n, ng,” Stops “p, b, t, d, k, g,” and Glides “w, y” are typically acquired earliest.
•Up next include Fricatives “f, v, s, z, sh, zh,” Affricate “ch” and Liquids “l, r.”

•Previous studies also note voiced/voiceless “th” and “zh” were generally the latest phonemes to be acquired.