LNG222

By CHRIGG2484

  • Birth

    "By as ealy as 2 weeks, infants are able to distinguis their caregivers from strangers." (Owens, Metz, & Farinella, 2011, p. 106).

  • 3 Months - infants begin to respond vocally, baby babble

    "During the first 3 months, caregivers' responses teach children the "signal" value of specific behaviours and infants learn a stimulus-response sequence." (Owens, et al., 2011, p. 107).

  • 8 months - infants begin to gesture

    "At about 8 to 9 months, infants develop intentionality in their interactions primarily through gestures." (Owens, et al., 2011, p. 107).

  • 1st birthday - 1st words

    "Real words are used with or without gestures to accomplish the functions previously filled by gestures." (Owens, et al., 2011, p. 107).

  • 18 months - increased utterance lengths and decreased babble

    By 18 months, infants can produce approximately 50 single words and begin to combine them in predictable ways. (Owens, et al., 2011, p. 108).

  • 2 years - more words

    The 2 year old toddler has an expressive vocabulary of about 150-300 words, and some use a great range of grammatical patterns. (Owens, et al., 2011, p. 109).

  • Preschool - ages 3 to 4 years

    The preschool-aged child's vocabulary grows to 900 to 1500 words, and with improved memories, preschool children begin to expand their conversation skills by using substitution and by being able to recount the past. (Owns, et al., 2011, p. 110-111).

  • 5 years - School aged

    As children begin to attend school, their communication takes place outside of the home more than previously, they begin learning to read and write, and 90% of adult syntax has been learned. (Owens, et al., 2011, p. 112-113).

  • Adolescents - 6th grade

    By 6th grade, vocabulary has grown to around 30,000 words, and figurative language is learned, while syntactic structures and morphological development continues to be refined. (Owens, et al., 2011, p.112-113).

  • 18 years - adult

    "Adult language development continues to change and grow as the adult's life changes with work, education, interests, and life experiences as long as the physical health does not cause any impairments." (Owens, et al., 2011, p. 115).