How to teach segmenting sounds in words
In short
To teach segmenting, say a word and have the student say each sound while tapping a finger or moving a token for each one. Start with two and three sound words, move to words with blends, and tie it to spelling once the student knows the letters.
What is phoneme segmentation?
Segmentation is breaking a spoken word into its sounds. Hear sit, say /s/ /i/ /t/. It is the reverse of blending, and it is the skill spelling depends on. A student cannot write the letters for a word until they can hear the sounds in order.
Most students find segmenting harder than blending. When blending, you hand them the parts and they only have to glue them together. When segmenting, they have to find the borders between sounds in a word that reaches the ear as one unbroken stream, with no pauses to mark where one sound ends.
Which words should you start with?
| Stage | Pattern | Examples |
|---|---|---|
| 1 | Two sounds, vowel first | up, at, in, on |
| 2 | Two sounds, consonant first | me, go, no, see |
| 3 | Three sounds, stretchy start | sun, map, fin, leg |
| 4 | Three sounds, stop start | bed, cap, dog, top |
| 5 | Four sounds, blend at the end | lamp, best, hand, milk |
| 6 | Four sounds, blend at the start | frog, stop, clap, swim |
| 7 | Five sounds | plant, crust, stamp |
Digraphs need a word about counting. Ship has four letters but three sounds. Students who count letters instead of sounds will say four. That confusion is useful to hear, since it tells you they are looking at print in their head, which is good, but miscounting the sounds.
How do you teach it step by step?
- Say the word naturally. Have the student repeat it.
- Stretch the word slowly with no breaks: ssssuuuunnnn.
- Say each sound with a tap, a finger or a token: /s/ /u/ /n/.
- Count the sounds: three.
- Blend back to the word: sun. This closes the loop.
- Teacher
- Say leg.
- Student
- Leg.
- Teacher
- Stretch it slowly.
- Student
- Llleeeg.
- Teacher
- Now tap each sound.
- Student
- /l/ /e/ /g/.
- Teacher
- How many?
- Student
- Three. Leg.
Should students use fingers, taps or tokens?
Any of them, as long as there is one movement per sound. Tokens in boxes are best at first because the student can see the sounds as separate objects. Finger taps are faster and need no materials, so they work well later in the year and for whole-group checks.
Arm tapping, touching shoulder, elbow and wrist for each sound, is popular with older students. It works, but it only fits three sounds well, and students start inventing extra stops on the forearm for longer words. Switch to fingers once words reach four sounds, since a hand has room for five.
How does segmenting lead to spelling?
Once a student can segment a word, they can spell it by writing one letter or letter group for each sound. That is the whole idea behind sound boxes with letters. It is also why spelling practice is one of the best ways to build segmenting.
When students know the letters, have them say the sounds and then write them. A student who writes ct for cat has segmented the outside sounds and lost the vowel. Have them say it again, slowly, and listen for the middle.
What errors should you watch for?
- Dropping the middle vowel: /b/ /d/ for bed. Stretch the word and ask what sound is in the middle.
- Adding a schwa: /buh/ /e/ /duh/. Model clipped sounds and have the student copy.
- Counting letters, not sounds: four for ship. Use tokens and say the sounds, not the letter names.
- Splitting a sound in two: /a/ /i/ for the long a in game. Long vowels are one sound, even if they feel long.
How do you know a student is ready to move on?
When they can segment a stage quickly, without stretching first, on words they have not practiced. Speed matters. A student who takes ten seconds per word will not have that skill free when spelling a sentence.
Check with a short, fresh set of words, not the ones from practice. If they get most right with no prompting, move up a stage. If they need the stretch every time, stay where you are for another week.
How do you build segmenting into the rest of the day?
Segmenting improves fastest when it shows up in more places than the phonemic awareness block. The easiest spot is spelling. Every time a student writes a word, have them say the sounds first, out loud or in a whisper, and then write a letter for each sound they said.
Transitions work too. Before a student lines up, say a word and have them segment it as their ticket to the line. It takes ten seconds per student and adds up to dozens of extra responses a week without taking any time from other lessons.
- Morning message: leave one word with a sound missing and ask students to find which one.
- Read-aloud: pause on a short word and have the group tap its sounds.
- Writing time: prompt a student who is stuck to stretch the word and write what they hear.
Keep your prompt the same everywhere: say it, stretch it, tap it. When the words match the language of the lesson, students carry the skill over without being reminded each time.