First Sentences & Conversations “I’m talking now!”
Syntactic Development Add Length Measured in Mean Length of Utterance (MLU) in words or in morphemes Add Sentence Structure Word order more closely approximates that of adult language Order & components reflect the type of sentence in addition to intonation Questions, imperatives, statements, negatives
Add Length: Morphology DEF: A morpheme is the smallest meaningful unit of language. cat = 1cats = 2 zip = 1 zipped = 2 unzipped = 3 run = 1ran = 1 See Handout
Practice Sentence Morphemes No 1.There daddy’s shoes poss, plur 5 2. Go night-night 2 3. Allgone juice 2 4. Two doggies plu 3 5. Big choo-choo train 3 6. He fell down irreg past 3 7. He likes trains 3 rd sing, plu 5 8. I don’t like trains plu 5 9. I kicked the ball reg past 5 10.Is he gonna catch it aux 5
Add Length: Words & Syntax Noun Phrase Structure: Initiator+Determiner+Adjective+Noun+Modifier...(+VP) Onlyhalf ofdaddy’sdogin there Eventhebigcitynext door Especially oldbaseballcapswhich fade Nearly bothherfeeton that Merelyseven ofyourcarsthat broke Wellthelasttrial on the tv
Verb Phrase Structure Auxiliaries + BE + Negative + Passive + Verb...+ is jumping werenot eating doesnot read can never see will never be driven should be worn might not have been fixed
Verb Phrases Take objects or not Transitive (one or more direct or indirect objects) Close the window (direct) Give the cake (direct) to Joe (indirect) Intransitive (no object) Jump Stative (take a complement) Linda is a smart woman.
Verb Phrases Can be active or passive The dog bit the boy; The boy was bitten by the dog Indicate time (through tense) Present (studies, is studying, can study) Past (studied, was studying, did study) Future (will study, will be studying)
Four main sentence types Sentence Types Declarative She drives fast. Interrogative Does she drive fast? Imperative Drive fast! Negative She doesn’t drive fast.
Practice Sentence Sentence Type 1.There daddy’s shoes Declarative 2. Go night-night Imperative 3. Allgone juiceDeclarative 4. Two doggies Declarative 5. Big choo-choo trainDeclarative 6. He fell down Declarative 7. He likes trains Declarative 8. I don’t like trains Negative 9. I kicked the ball Declarative 10.Is he gonna catch it Interrogative
Semantic Development Vocabulary is growing incredibly fast Measured using a Type-token ratio Type = number of different words Token = total number of words See handout
Practice Sentence # Words # “New” words (Tokens)(Types) 1.There daddy’s shoes Go night-night Allgone juice Two doggies Big choo-choo train He fell down He likes trains I don’t like trains I kicked the ball Is he gonna catch it 5 4
Strategies Fast Mapping N 3 C: novel name nameless category Contrast and conventionality rules
Forming Definitions Develop through linguistic & nonlinguistic contexts Noun definitions/representations include: Physical, functional & locational properties, Verb definitions/representation include: Who or what does the action, the receiver of the action, & where, when, and with what the action is done
Categorization is based on environmental contexts and frequently heard word associations rather than superordinate category development
Relational Terms Interrogatives (Question Words): yes/no, what, where, who, whose, which, when, how, why If you know the wh-word in the question, answer with an appropriate subject (e.g., what vs what doing) If you don’t know it, answer based on your representation of the verb (e.g., When are you going to eat – cookie)
Temporal Relations Order (after, before) Duration (since, until + verbing) Simultaneity (while, at the same time) 2-3 year olds have trouble with this.
If not understood the child will rely on: The order of mention in the clauses or What seems logical Before you go to bed, read a book After you go to bed, read a book Brush your teeth before you go to bed After you go to bed, brush your teeth
Physical Relations Concept words: one pole is typically learned first (all temperatures are hot) Opposites (big-little; lots-none) before gradations (medium; more-less) Concrete generalizable terms are learned first (big-little before deep-shallow) Number of dimensions that must be considered affects learning (same- different)
Locational Prepositions Some are learned really early (in, on, under) If there is a container something goes in; if there is a surface, something goes on Learn in reference to: themselves first then people and objects with definite fronts (e.g., chair) then non-fronted objects (e.g., box)
Movement prepositions to vs. from; into vs. out of; onto vs. off things should touch if they are related into the box; into trouble Out of the fridge; out of time Off the table; off his medication
Kinship terms Mother father sister brother Son daughter, grandfather, grandmother, parent Uncle, cousin, nephew, niece.