Phoneme addition activities for building blends

Addition is the reverse of deletion. Instead of taking a sound out, the student puts one in and blends the result. It sits with deletion and substitution at the advanced end of the phonemic awareness continuum, but many students find it easier than deletion because nothing has to be removed from memory.

Addition has one especially practical use. Students who spell "snap" as "sap" or "frog" as "fog" often cannot hear the second consonant in a blend. Adding that sound on purpose, first orally and then with tiles, targets the gap directly. The pillar on phonemic awareness interventions covers the full routine.

What to check before you start

The student should blend and segment 3-sound words in about 8 of 10 items. Then probe 10 items at each level below. Look at spelling too: count how many blend words in a recent writing sample are missing a consonant. That number is a useful second baseline.

Step-by-step addition activities

Step 1: Add a sound to the start

"Say at. Now add /m/ to the beginning." (mat) Start with vowel-first words, so the student builds a CVC word.

Step 2: Add a sound to the end

"Say bee. Add /t/ to the end." (beet) Items: tea + /m/ = team, see + /d/ = seed, row + /d/ = road, car + /t/ = cart, no + /t/ = note, my + /t/ = might. Final additions are harder to hear, so expect a lower score for the first few days.

Step 3: Add a sound to make a beginning blend

"Say nap. Add /s/ to the beginning." (snap) This builds blends by adding to the front. Items: lip + /s/ = slip, top + /s/ = stop, rip + /t/ = trip, lock + /b/ = block, rain + /t/ = train, late + /p/ = plate.

Step 4: Add a sound inside a word

"Say pan. Add /l/ after /p/." (plan) This is the step that targets the missing second consonant. Items: fog + /r/ after /f/ = frog, bed + /r/ after /b/ = bred, sip + /l/ after /s/ = slip, cap + /l/ after /k/ = clap, got + /r/ after /g/ = grot (a made-up word is fine). Keep additions inside the onset at first. Then try ending blends: "Say bet. Add /s/ before /t/." (best) "Say mitt. Add /s/ before /t/." (mist)

Step 5: Add with letter tiles

Build "nap" with tiles. "Read it." (nap) "Add an s to make snap. Where does it go?" The student places the tile and reads the word. Then: "Make sap. Now make snap." Hearing the two words side by side, and seeing one extra tile, makes the difference concrete.

Step 6: Add endings

For students working on spelling, add a final /s/ or /z/ to make plurals: cat to cats, dog to dogs. Then add /t/ for some past-tense forms: jump to jumped. This links sound work to word endings and to the morphology lessons that come next.

Worked example: Ella, 1st grade, spring

Ella is a fictional 1st grader with an IEP for reading and writing. She reads and spells CVC words well. In a 20-word dictation of words with beginning blends, she spells 6 correctly. Her errors drop the second consonant: "sap" for snap, "fog" for frog, "cap" for clap.

On a 10-item oral probe, she adds a first sound in 9 of 10 and adds a sound inside an onset in 2 of 10. Her teacher spends 5 minutes on addition in each daily session and gives a 10-item oral probe and a 20-word dictation every other Friday.

The spelling count is the measure the team cares most about. The oral probe shows why spelling improved.

A goal for Ella could read: "Given 10 spoken words, Ella will add a named sound inside the onset to make a new word, such as pan to plan, for 8 of 10 words on 2 consecutive probes." Baseline: 2 of 10. Templates: add a sound to make a new word and add a sound inside a word. For the spelling side, see IEP spelling goals examples.

How addition fits with the other manipulations

The National Reading Panel reported that phonemic awareness instruction was more helpful when it used letters and focused on one or two skills at a time.^[1] So teach addition on its own for a few weeks, and move it to tiles quickly. The phoneme deletion activities page explains the debate over oral-only manipulation for older students, and phoneme substitution activities covers word chains.

Common mistakes

• Weak: "Add a t to rain." in an oral item. Better: Name the sound and the place: "Add /t/ before /r/."
• Weak: Accepting "tain" for rain plus /t/ at the start. Better: The /t/ joins the onset: "train." Model it with tiles.
• Weak: Only adding at the start, where it is easy. Better: Spend most time on additions inside the onset, where the spelling errors are.
• Weak: Checking only the oral probe. Better: Track blend spelling in dictation or writing, too.
• Weak: Teaching addition and deletion on the same day to a student who confuses them. Better: Finish addition first, then reverse it as deletion.

Tools and templates

• The phonological awareness goals page lists every manipulation template.
• Score oral items on the opportunity trial data sheet and dictation on the accuracy data sheet.
• Check a draft in the goal checker.

Frequently asked questions

Use it in IEP Atlas

• Phonological awareness goals (reading)
• Phonemic awareness in the IEP glossary
• Phonological awareness in the IEP glossary
• Opportunity trial data sheet
• IEP goal checker

Related guides

• Phonemic awareness interventions for students with IEPs
• Phoneme deletion activities, with letters and without
• Phoneme substitution activities and word chains
• Blending sounds activities: phoneme blending in teaching order
• Elkonin boxes: how to use sound boxes for segmenting

Sources

1. Report of the National Reading Panel: Teaching Children to Read, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Written and checked by the IEP Atlas editorial team under our editorial policy. This guide describes general practice and federal rules. It is not legal advice; your state may add requirements, and the IEP team makes the decisions for each student.