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Comprehensive Definition
Segmenting is breaking a spoken word into individual sounds (phonemes). It is the inverse of Blending.
Crucial for spelling (encoding).
Practical Example
Teacher says "swift". Student segments /s/-/w/-/i/-/f/-/t/. Then writes 'swift’.
Take the irregular word said. A student can decode the s and the d straightforwardly, since those letters represent their expected sounds. The tricky part is the ai, which here represents the sound /e/ rather than its usual pronunciation. Rather than memorising the word as an unanalysed shape, the student maps the regular parts as normal and gives special attention to the irregular grapheme, bonding the whole spelling to its pronunciation and meaning. With repetition, said is recognised instantly, exactly as a fully regular word becomes automatic through the same process.
Common Misconception
A common belief is that sight words are "look and say" words, learned by memorising their overall shape. In fact, we learn sight words by mapping their graphemes to their phonemes, including the irregular parts, and bonding that spelling to the word's pronunciation and meaning in memory. Even irregular words are mostly regular, and it is this letter-sound mapping, not visual shape, that fixes a word in memory for instant recognition.
FAQs
Q: Purpose?
A: To enable spelling.
Q: Harder than blending?
A: Yes, requires holding the word and breaking it against the flow of speech.
Q: Relation to Alphabetic Principle?
A: Allows identification of phonemes to map to graphemes.
Q: Are sight words and high-frequency words the same thing?
A: No, though the terms are often used interchangeably. A high-frequency word is simply a word that appears very often in text. A sight word is any word a reader recognises instantly, regardless of how common it is. High-frequency words often become sight words early because of how often they are encountered, but ultimately every word a skilled reader knows becomes a sight word.
Q: How does a word become a sight word?
A: Through repeated successful decoding. Each time a student decodes a word correctly, they strengthen the connection between its spelling, its sounds, and its meaning. After enough exposures this word is mapped into memory and recognised automatically, without conscious decoding.
Q: Do irregular words need to be learned by memorising their shape?
A: No. Even irregular words are decoded as far as possible, with only the irregular grapheme needing special attention. They are mapped to memory through their letter-sound relationships in the same way regular words are, not stored as visual pictures.
