6 Months
- Vocalization with intonation
- Responds to name
- Responds to human voices without visual cues by turning head and eyes
- Responds appropriately to friendly and angry tones
12 Months
- Understands simple instructions, especially if vocal or physical cues are given
- Practices inflection
- Is aware of the social value of speech
18 Months
- Has vocabulary of approximately 5-20 words
- Vocabulary made up chiefly of nouns
- Some echolalia (repeating a word or phrase over and over)
- Much jargon with emotional content
- Is able to follow simple commands
24 Months
- Can name a number of objects common to his surroundings
- Is able to use at least two prepositions, usually chosen from the following: in, on, under
- Combines words into a short sentence (nouns and verbs)
- Average length of sentences is given as 1.2 words
- Approximately 2/3 of what child says should be intelligible
- Vocabulary of approximately 150-300 words
- Rhythm and fluency often poor
- Volume and pitch of voice not yet well-controlled
- Can use two pronouns correctly: I, me, you, although me and I are often confused
- My and mine are beginning to emerge
- Responds to such commands as "show me your eyes (nose, mouth, hair)"
36 Months
- Use pronouns I, you, me correctly
- Is using some plurals and past tenses
- Knows at least three prepositions, usually in, on, under
- Knows chief parts of body and should be able to indicate these if not name
- Handles three word sentences easily
- Has in the neighborhood of 900-1000 words
- About 90% of what child says should be intelligible
- Verbs begin to predominate
- Understands most simple questions dealing with his environment and activities
- Relates his experiences so that they can be followed with reason
- Able to reason out such questions as "what must you do when you are sleepy, hungry, cool, or thirsty?"
- Should be able to give his sex, name, age
- Should not be expected to answer all questions even though he understands what is expected
48 Months
- Knows names of familiar animals
- Can use at least four prepositions or can demonstrate his understanding of their meaning when given commands
- Names common objects in picture books or magazines
- Knows one or more colors
- Can repeat 4 digits when they are given slowly
- Can usually repeat words of four syllables
- Demonstrates understanding of over and under
- Has most vowels, diphthongs and the consonants p, b, m, w, n
- Often indulges in make-believe
- Extensive verbalization as he carries out activities
- Readily follows simple commands even though the stimulus objects are not in sight
- Much repetition of words, phrases, syllables, and even sounds
60 Months
- Can use many descriptive words spontaneously-both adjectives and adverbs
- Knows common opposites: big-little, hard-soft, heavy-light, etc
- Has number concepts of 4 or more
- Can count to ten
- Speech should be completely intelligible, in spite of articulation problems
- Should have all vowels and the consonants, m, p, b, h, w, k, g, t, d, n, ng, y
- Should be able to repeat sentences as long as nine words
- Should be able to define common objects in terms of use (hat, shoe, chair)
- Should be able to follow three commands given without interruptions
- Should know his age
- Should have simple time concepts: morning, afternoon, night, day, later, after, while, tomorrow, yesterday, today
- Should be using fairly long sentences (compound/complex)
- Speech on the whole should be grammatically correct
6 Years
- In addition to the above consonants these should be mastered: f, v, sh, zh, th, 1
- He should have concepts of 7
- Speech should be completely intelligible and socially useful
- Should be able to tell one a rather connected story about a picture, seeing relationships between objects and happenings
7 Years
- Should have mastered the consonants s-z, r, voiceless th, ch, wh, and the soft g as in George
- Should handle opposite analogies easily: girl-boy, man-woman, flies-swims, blunt-sharp, short-long, sweet-sour, etc.
- Understands such terms as: alike, different, beginning, end, etc.
- Should be able to tell time to quarter hour
- Should be able to do simple reading and to write or print many words
8 Years
- Can relate rather involved accounts of events, many of which occurred at some time in the past
- Complex and compound sentences should be used easily
- Should be few lapses in grammatical constrictions-tense, pronouns, plurals
- All speech sounds, including consonant blends should be established
- Should be reading with considerable ease and now writing simple compositions
- Social amenities should be present in his speech in appropriate situations
- Control of rate, pitch, and volume are generally well and appropriately established
- Can carry on conversation at rather adult level
- Follows fairly complex directions with little repetition
- Has well developed time and number concepts
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