Word Learning Flashcards
What is required to learn a word?
- speech stream segmentation/form encoding
- mapping problem
- linking problem
- extension problem
speech stream segmentation/form encoding
- determine the word form (phonetic/orthographic)
mapping problem
- determine the word meaning
linking problem
- link the form and the meaning to each other
extension problem
- figure out the boundaries of the category
- what else does this word refer to and not refer to
Fast Mapping
- happens with few exposures
- frequently assumed to occur incidentally, via over-hearing or chance
- early/surface level knowledge
- linkage between form and meaning is critical
Form + meaning= word
Slow Mapping
- strengthens form, meaning, and/or link
- represent the word with additional examples and info
- integrates the word into a large semantic networks
- happens over time
- requires repeated exposures
- requires that you recognise that you are hearing the same word again
Phonological working memeory as a Cog Process underlying Vocab Learning: Baddelely 2010 working memory model:
Modality:
- visuospatial sketchpad
- phonological loop
Central executive:
- attention controller
- episodic buffer
Kids with DLD and Dyslexia (and other S/LI and SLDs) have reduced phonological memory
Children with DLD Weaknesses
- weaker vocabulary breadth and depth
- more difficulty with form encoding
- poor word retrieval skills (words with stronger representations are more likely to be retrieved)
Polysemous words:
- double function words
- words that have a physical and psychological meaning
Developmental Trajectory:
1. know the physical meaning
2. know the psychological meaning
3. see the relationship between the two and be able to explain it
Other polysemous words:
- homophones
- sound the same/spelled differently/different meanings
- in oral language can be confusing- access to written language aids in meaning differentiation
Children with DLD Strengths (primary vs secondary)
- better accuracy for the primary meaning compared to the secondary meaning
- awareness of secondary meaning improves through adulthood
- much poorer for children with DLD as compared to TD- 40-60% correct for TD
Teaching Words
- mid-frequency
- occur across many contexts
- likely to have multiple meanings
- more common in written than spoken language
Tier 1 words:
- basic words
- part of every day language
- needed for communication
- learned through conversation and interactions
Tier 2 words:
- academic words
- polysemous words
- transition words
- conjunctions
-idioms - phrasal/compound words
Tier 3 words
- subject-specific words that don’t have broad utility
- often words bolded in text books
Choosing amount Tier 2 words
- choose words the child will encounter soon and often
- is the word representative, repeatable, transportable, context analysis, and morphological analysis, helpful for learning other words?
- choose words that are useful and hard
- focus on words that require deep knowledge and flexible understanding
Word Learning Strategies:
- get teachers on board- these strategies benefit everyone
- expect DLD kids to need more extensive instruction and practice to move to independence
- support practice with visuals
Word Learning
Plan
- notice words you do not know
- stop when the word interferes with comprehension
- keep a list and confirm the word meaning later if possible
Vocabulary Interventions
-Robust Vocabulary Instruction: depth and breadth
- Lexicon Pirates and Vocabulary Book: empowering kids to learn vocab independently
- supporting word finding via strong semantic networds
- dose and intensity
Contextual Abstraction
- lexical representations build up over time
- context clues guide learning meanings
- some words are more frequent and easier to represent
- low frequency, abstract words may not be readily learned through incremental, incidental exposure
Direct instruction
- can support and extend contextual abstraction
Robust Vocab Instruction
- encounter new words systematically
- child-friendly definitions and explicit instruction
- exposure to multiple examples- adult points examples out, then child is prompted to identify them
- associate words with child’s own experiences
- provide opportunities for production practice
Child friendly Definitions
- something you can weave into reading or speaking easily
- relatable and using known words or examples for the child
- consider having two-three variations so that the definition isn’t just memorized
- write the definitions on a word wall or in a vocab notebook for the child to refer to