How to teach blending sounds

What is blending?

Blending is putting separate sounds together to make a word. You say /r/ /u/ /n/ and the student says run. It is the core move in decoding. Every time a student sounds out a new word in a book, they are blending.

Oral blending uses spoken sounds only. Decoding adds letters, so the student must recall each sound from memory and then blend, which is two jobs at once. Teach the oral version first, briefly, so the blending part is familiar, then add letters as soon as the student knows a few.

Why do some students struggle to blend?

Usually because they hold each sound in a separate box. They say /k/ /a/ /t/ and then guess kit, or just repeat the sounds. Two things cause most of this: gaps between the sounds and an extra vowel added to stop sounds.

When a student says cuh-a-tuh, they now have five sounds to blend, and the result does not sound like cat. Clipping the stop sounds, /k/ without the uh, fixes much of it. So does picking words that start with sounds you can stretch.

Which sounds should you start with?

Continuous sounds can be held as long as your breath lasts: /m/, /s/, /f/, /l/, /n/, /r/, /v/, /z/, /sh/ and all the vowels. Stop sounds are short bursts that cannot be stretched: /b/, /d/, /g/, /k/, /p/, /t/.

Words that start with a continuous sound let the student slide straight into the vowel. Mat, sun, fin and lip are easier to blend than bat, dug or pin. Save stop sounds at the start of a word for when the student is blending well.

Continuous or sound-by-sound blending: which works better?

Continuous blending keeps the sounds connected so the word is easier to hear. Sound-by-sound blending, sometimes called successive or cumulative blending, adds one sound at a time and blends as it goes. It holds less in memory at once and shows you exactly where a student breaks down.

You need both. I start most students with continuous blending on easy words, then teach sound-by-sound blending once stop sounds and blends appear. Students who freeze on four-sound words often do better adding one sound at a time.

What does a blending routine sound like?

Keep your language the same every day. The routine below uses letters on a board, but the same steps work orally with fingers.

1. Model one word with no student response.
2. Do the next word together.
3. Have the group do two words while you listen.
4. Call on individual students, quickly, for the rest.

What if the student says the sounds but not the word?

Some students can blend but do not recognize the word because it is not in their vocabulary. Check that. If a student blends /j/ /i/ /b/ perfectly and says 'is that a word?', the blending worked. Teach the meaning and move on.

Others blend fine with three sounds but fall apart at four. Use sound-by-sound blending for those words, and choose ones with the extra consonant at the end first, like lamp, before ones with a blend at the start, like slip.

How much practice does blending need?

A few minutes a day, with many words. Twenty words in four minutes beats five words in ten, because each correct blend is a repetition that builds the habit. Use a mix of real words and a few nonsense words like vot or mip, which show you whether the student is truly blending or guessing from the first letter and the length.

Then move blending into connected text. A student who can blend words in a list still needs decodable sentences that use the same patterns. Our free decodable text checker can tell you which words in a passage a student has the patterns to read.

When should blending become automatic?

Sounding out is a stage, not the finish line. After a student has blended a word correctly several times across a few days, they should start reading it as a whole, with no audible sounding out. That shift is what Ehri calls building a sight word, and it happens through accurate blending, not by skipping it.

You can help the shift along. After a student blends a word, have them read it again right away, then once more at the end of the lesson. Encourage silent blending, lips moving but no sound, for words that are nearly automatic. Then ask for the whole word first and the sounds only if needed.

• Week one with a pattern: blend every word out loud.
• Week two: blend silently, then say the word.
• Week three: read the word first, blend only to check or fix.

Some students cling to out-loud blending long after they need it, because it feels safe. Others drop it too early and start guessing. Listen to each student read a short list once a week and nudge them in whichever direction they need.