Zusammenfassung der Ressource
Lexical & Semantic
Development
- Lexical
development
- Child's
acquisition
of words
- Semantic
development
- Child's
acquisition of
meanings
associated w/
those words
- REMEMBER
- Vocab
acquisition does
NOT end at
certain age
- We cont
hearing &
learning new
words
throughout life
- Rate of
acquisition
- End of
1st yr
- Child begins
to speak
- 18
months
- Vocab of
about 50
words
- 2 yrs
- Vocab of
about 200
words
- 5 yrs
- Vocab
about 2,000
words
- 7 yrs
- Vocab
about 4,000
words
- Understanding
- Prev figures
refer to word
use
- At each stage, no of
words understood
by child is expected
to be higher
- 18 months -
250 words
understood
- Meanings
- When a child adds new
word to vocab, they are
NOT immediately aware
of its full range of
meanings
- More time
required to acquire
this additional
knowledge
- First
words
- Research has shown there
are predictable patterns in
the words & word classes first
acquired by children
- Entities
- Properties
- Actions
- Personal
- social
- Predictably a large
proportion of child's 1st
words refer to familiar
people, objects & aspects
of social interaction
- Word
classes
- Nouns
- Verbs
- Adjectives
- Concrete
nouns
- 5 - 7
yrs
- Abstract
nouns begin
to be used
- Grammatical
function
words
- Noticeably
absent in early
stages of lexical
acquisition
- Under -
Extension
- Common
semantic error
made by
children
- Word is given a
narrower (under
extended)
meaning
- 'Cat' is family
pet but NOT
other cats
- Over -
Extension
- Another
common
semantic
error
- Opposite
of under -
extension
- Word is given a
broader (more
gen) meaning
- 'Daddy' for
all men not
just daddy
- More
common then
under -
extension
- 50 word
vocab
- 1/3 likely
to be over -
extended
- Getting
it right
- Age 2
1/2
- Marked
decrease in
no of over -
extensions
- Explanation
- Child's
vocab
- Understanding
- Remember
- Children's
understanding of word
meanings is ahead of
ability to produce
corresponding words
- Aitchinson
(1987)
- 3 stages /
processes
occur during
acquisition of
vocab
- Labelling
- Packaging
- Network
building