/CH/ Speech Therapy: Teach CH, Fix ch→sh & ch→t

The CH sound is one of the last consonants most children master, and it is one of the most misunderstood — because CH is not really one sound at all. It is two sounds fused together: a quick /t/ stop followed by a /sh/ release. Understanding that single fact explains why children make the two errors they make, and it tells you exactly how to fix each one.

This guide walks SLPs and parents through teaching the CH sound and fixing its two most common errors — deaffrication (ch→sh) and stopping (ch→t) — with word lists by position, minimal pairs, developmental norms, and sample IEP goals.

This is written primarily for SLPs — clinical depth on error patterns, shaping, word lists, minimal pairs, and IEP goals — with a clearly marked home-practice section for parents. Skip to the section you need.

What Makes the CH Sound Tricky

CH — the /tʃ/ phoneme — is a voiceless palatal affricate. It is made at the palate, with no voicing, and it sits at developmental order 18 of the 24 English consonants: a later-developing sound, but not one of the very last.

The phonetic insight most guides skip is what “affricate” means. An affricate is a stop plus a fricative fused into one sound. CH = /t/ + /sh/: a quick tongue-tip stop that builds air pressure, then releases into a /sh/ burst. That one fact explains both error patterns and every shaping technique later in this article — a child who drops the stop lands on /sh/, and a child who drops the fricative lands on /t/.

CH has a close relative. J (/dʒ/, voiced) is its cognate affricate — same palatal place, same affricate manner, differing only in voicing. The two share identical developmental norms (both 3;6 / 5;0) and tend to emerge together, so a child working on CH is often close on J as well.

For placement, CH is one of Shriberg’s “Middle-8” sounds (ng, t, k, g, f, v, ch, j) — later than the Early-8, earlier than the Late-8 (/r/, /s/, /th/). It is commonly grouped with the other digraphs (example word: cheese). None of this is trivia: the affricate structure is the key to everything that follows in this guide.

When Should a Child Say the CH Sound?

Developmental norms decide whether CH is even an IEP concern. The values below come from McLeod and Crowe’s cross-linguistic review (2018) and its U.S.-specific companion, Crowe & McLeod (2020) — the current standard for American English consonant acquisition.

Ages use the standard speech-pathology years;months format, not decimals. 3;6 means 3 years, 6 months old — not 3.6 years. 5;0 means 5 years, 0 months (typically the start of kindergarten).

The window from 3;6 to 5;0 is the normal “emerging” band: CH errors here are developmentally typical, not yet a flag. Past 5;0, a child who is still substituting or distorting CH with an intelligibility impact is typically a reasonable target. Two caveats keep this honest, as in any norms-based decision: being under age does not rule out an IEP (a highly unintelligible 4-year-old may still need service), and being over age does not mandate one (a fully intelligible 6-year-old with a mild residual error may not meet eligibility).

You may see some one-page “by age” charts place CH at 4;0 — a genuine rendering variance; this guide uses 5;0 to stay consistent with the current McLeod & Crowe review. For the full consonant timeline, see our speech sound milestones by age.

The Two Main CH Error Patterns: Deaffrication vs Stopping

Here is the wedge no CH guide should skip: there are two distinct CH errors, and they need two different fixes. Match the pattern to the remediation and therapy gets faster.

Deaffrication replaces the affricate with a fricative — ship for chip, share for chair, wash for watch. The child drops the stop portion (the tongue-tip closure and burst), leaving only the /sh/. This is a normal phonological process typically suppressed by about age 4 (Bowen 2015); persistence past ~4;6 warrants therapy. A second deaffrication variant is ch→s (sip for chip), which drops the same stop but lands on /s/ rather than /sh/.

Stopping replaces the affricate with a stop — tip for chip, top for chop. The child drops the fricative portion (the /sh/ release), leaving only the /t/. Because /t/ is already mastered by 4;0, the child is simply defaulting to a stop they own. The 3;0 figure many charts cite is for stopping of /f/ and /v/ — it does not apply to an affricate like CH. Stopping of the later palatal sounds (/ʃ/, /ʧ/, /ʤ/) is typically suppressed by about 4;6, with clinical concern only if it persists past ~5;6 — so a persistent ch→t, especially one lingering past the 5;0 CH mastery age, is a clear target.

One quick disambiguation so you do not confuse patterns: palatal fronting (ch→ts, sh→s) is a related but distinct process, also suppressed by about 4;0. It is worth naming, but it is not this article’s focus.

The two main patterns map one-to-one onto named minimal-pair sets — the practical payoff of the sections below. For the full breakdown of all eight common phonological processes, including deaffrication and stopping, see our phonological processes guide.

How to Teach the CH Sound: A Shaping Ladder

Most guides give you one elicitation trick. Because CH is a fused stop-plus-fricative, you actually have a ladder of techniques, and the right rung depends on which half of the sound the child is dropping. Probe first, pick the technique that matches the error, then collapse and generalize.

Technique E — Probe stimulability first

Before choosing anything, find out whether CH is already emerging. It often surfaces through coarticulation in “t + you” phrases — say bet you, got you, meet you at a natural pace and listen for the /tʃ/ that appears at the word boundary (“betcha,” “gotcha”). If the child produces that CH, you have a stimulable sound to build from — a 30-second check that saves a session of guessing.

Technique A — Shape CH from /t/ (best for stopping)

A child who stops CH already owns the /t/; they are just dropping the fricative release. Start from a long /t/, freeze the tongue tip against the alveolar ridge, round the lips, and say shop — then slide the frozen /t/ into it to produce chop. This “t → sh → ch” placement route is a well-established elicitation path (Adventures in Speech Pathology).

Technique B — Shape CH from a held /sh/ (best for deaffrication)

A child who deaffricates already owns the /sh/; they are dropping the stop. Have them hold a long /sh/, then add a quick tongue-tip closure at the ridge to interrupt the airstream into a burst. The interruption is the missing stop — the moment the /sh/ is stopped and released, it becomes CH.

Technique C — The t + sh blend

Teach CH explicitly as two familiar sounds said fast: /t/ + /sh/. Have the child produce them slowly and separately, then speed them up until they fuse. Slowing down first makes the two components conscious; speeding up automates the blend.

Technique D — The burst / airflow cue

Anchor the sound with a verbal cue — “Tongue up, lips round, burst of air!” — and a tactile analogy. The sneeze (“A-CHOO!”) is a memorable anchor for parents; a spray-bottle or “burst” demo makes the puff of air visible, especially for the CH-vs-SH contrast (a Peachie Speechie-style cue).

Put together, the ladder runs: probe stimulability (E) → pick the technique that matches the error (A for stopping, B for deaffrication) → collapse the two parts into the t + sh blend (C) → generalize with the burst cue (D). From there, move through the standard hierarchy — isolation → syllable → word → phrase → sentence → conversation — which the word lists and IEP goals below operationalize.

CH Word Lists by Position

A position-sorted word list is the most bookmarkable asset in any sound guide. Sound Safari ships 90 CH practice words, split evenly across the three word positions — 30 initial, 30 medial, 30 final. Here is a working sample of each:

Most therapy starts word-initial (usually the easiest position to cue), then moves to final, then medial — which ties back to the shaping ladder above and forward to the goal levels below. The split matters because a child can be stable initially and still collapse in the medial position, where CH sits between two vowels.

Sound Safari generates these position-sorted CH lists for you — 30 per position, ready to pull into a session — so you are picking from a set rather than building one by hand.

CH vs SH Minimal Pairs: Fixing Deaffrication

Minimal pairs are the standard evidence-based method for deaffrication. Caroline Bowen notes that as few as 3–5 minimal pairs can drive generalization to untreated words (Elbert et al., 1991), so a small, well-chosen set does real work.

In Sound Safari, the CH-vs-SH set is explicitly labeled “Deaffrication” and carries 19 illustrated pairs (8 initial, 11 final):

Why this contrast works: it forces the child to add back the stop that deaffrication drops. Hearing chip versus ship makes the missing tongue-tip burst meaningful — the child has a communicative reason to close and release, because the two words mean different things. That is the mechanism behind the whole minimal-pairs approach: contrast for repair.

If the child’s variant is ch→s (sip for chip) rather than ch→sh, the same logic applies with a CH-vs-S set — the same family as the /s/ and /sh/ fricative work. Sound Safari’s minimal-pair decks are illustrated, so you can run them without printing worksheets.

CH vs T Minimal Pairs: Fixing Stopping

The stopping fix mirrors the deaffrication fix, from the other direction. In Sound Safari, the CH-vs-T set is explicitly labeled “Stopping” and carries 19 illustrated pairs (7 initial, 2 medial, 10 final):

Why this contrast works: it forces the child to add back the fricative that stopping drops. Chip versus tip makes the missing /sh/ release meaningful — again, a communicative reason to produce the harder sound.

CH is unusually rich in contrasts. In Sound Safari it participates in 14 distinct minimal-pair contrasts totaling 145 illustrated CH pairs (b-ch, ch-f, ch-h, ch-k, ch-l, ch-m, ch-n, ch-p, ch-r, ch-s, ch-sh, ch-t, ch-th, ch-v) — and, uniquely, the two most useful of those are mapped straight to the error patterns. There is also a smaller CH-vs-S set (7 pairs) for the ch→s deaffrication variant named earlier. Because the app auto-detects which pattern a child shows, you pick the right pair set from the data rather than by guesswork. Browse our full library of minimal pairs word lists to see the contrasts in one place.

Sample IEP Goals for the CH Sound

Once CH is confirmed as a target — gated by the 5;0 mastery age above, with an intelligibility impact — you need measurable goals. Sound Safari’s goal bank ships 22 built-in templates across 8 categories (articulation, phonology, fluency, voice, receptive language, expressive language, pragmatics, and phonological awareness). Two articulation templates fit CH directly, both defaulting to an 80% accuracy criterion: “Sound in Word Position” and “Sound in All Positions.”

Goal 1 (word position): Given a verbal model and tactile cues, [Student] will produce the /tʃ/ affricate in the initial position of single-syllable words (e.g., chip, cheese, chair) with 80% accuracy across 20 trials in 3 of 4 consecutive sessions by the end of the IEP year. Suggested baseline: 0–40%. Timeframe: 12–36 weeks.

Goal 2 (all positions): [Student] will produce /tʃ/ in the initial, medial, and final positions of single-syllable and two-syllable words (e.g., chip, teacher, beach) with 80% accuracy across 20 trials in 3 of 4 consecutive sessions by the end of the IEP year. Suggested baseline: 20–50%. Timeframe: 24–52 weeks.

Goals 1 and 2 carry those two templates’ built-in 80% criterion and default timeframes. A sentence-level goal is a common next step you write yourself — the app has no dedicated sentence-level template, so the baseline and timeframe below are illustrative planning conventions, not app values:

Goal 3 (sentence level): Given a sentence frame and picture cues, [Student] will produce /tʃ/ in all word positions within structured sentences with 80% accuracy across 20 trials in 3 of 4 consecutive sessions by the end of the IEP year. Suggested baseline: 45–60%. Illustrative timeframe: 16–24 weeks.

Which template you pick depends on the error — and there is an important distinction here. There is no dedicated “deaffrication” template in the bank: deaffrication is targeted through the articulation templates above (the child produces /tʃ/ correctly). Stopping, by contrast, has its own phonology template, because stopping is usually a pattern that spans several fricatives and affricates rather than a single sound:

Goal (stopping, phonology): [Student] will eliminate the process of stopping by producing fricatives correctly with 80% accuracy across [number] consecutive sessions. The app supplies this template’s goal text, 80% criterion, suggested baseline (0–30%), and timeframe (20–40 weeks).

Every goal here is a starting point, not a substitute for clinical judgment, baseline data, or your district’s conventions — adjust the criterion and timeframe to your student. For the full set of copy-paste articulation goals, including a dedicated /ch/ progression, see our IEP goal templates. In Sound Safari, session scoring links straight to the goals you have written, so the probe data behind each one stays current without manual re-entry.

Home Practice for Parents

This section is for parents and caregivers — no clinical background needed. (An “SLP” is a speech-language pathologist, the professional who treats speech sounds.)

First, reassurance. If your child is roughly between 3½ and 5 years old and still says “ship” for chip or “tip” for chip, that is often developmentally typical — CH is one of the later sounds to click into place. It is worth checking with an SLP if your child is clearly past age 5 and still swapping CH, or if unfamiliar listeners have trouble understanding them.

A few simple things help at home:

1. The sneeze cue. CH sounds like a tiny sneeze — “A-CHOO!” Exaggerate the little burst of air and let your child copy it.
2. Model, don’t correct. If your child says “ship” for chip, do not demand a redo. Just say the word correctly two or three times in natural conversation (“Yes, a chip! That’s a big chip!”). Hearing the right version matters more than drilling it.
3. Short and frequent. Three to five minutes a few times a week beats one long session. CH is a motor skill, and little-and-often builds it fastest.
4. Play with picture pairs. Line up pictures like chip/ship and chip/tip and let your child hear — and see — that they are different words. Turning it into a guessing game keeps it light.

If you want a little more structure, Sound Safari’s parent view walks through CH practice with pictures right in your web browser — no app to download. Your child’s practice data stays on your device and your private iCloud; no third party ever receives your child’s practice or clinical data — no ads, no behavioral tracking, no data brokers. Account sign-in and subscriptions are handled by standard providers. See what parents get.

From Practice to Progress: Tracking CH Therapy

The hardest part of CH therapy is not picking a technique — it is knowing which error the child is actually making, session to session. Sound Safari flags deaffrication and stopping automatically from session scoring, so you know at a glance whether to run the CH-vs-SH set or the CH-vs-T set. That closes the two-error-pattern loop this whole guide is built around.

The detection sits inside a single clinical workflow: practice, screen, document, and share — all in one app. The built-in articulation screener covers 24 sounds across the initial, medial, and final word positions and checks the affricate against developmental norms, replacing the $200+ you would spend on separate assessment tools. And it is the only articulation app with auto-generated SOAP notes — session data flows into the standard four-section clinical structure (Subjective, Objective, Assessment, Plan), with a default and a brief template, so the documentation is largely written by the time the session ends.

Sound Safari is a clinical tool, not a medical device. It does not provide diagnoses or treatment recommendations. The screener is informational — clinical decisions should always be made by qualified professionals.

For the screening side, see our articulation screening checklist; for the documentation side, see writing SOAP notes in speech therapy. To put the full loop to work, Sound Safari for professionals was built for exactly this.

Frequently Asked Questions

Closing

Teach CH by understanding what it actually is — a /t/ stop fused to a /sh/ release — and the two error patterns stop being confusing. A child who says “ship” is dropping the stop (deaffrication); fix it with CH-vs-SH minimal pairs. A child who says “tip” is dropping the fricative (stopping); fix it with CH-vs-T minimal pairs. Gate the decision to treat on the 5;0 mastery age, and match the IEP template to the error.

The goals and templates here are starting points, not a replacement for your clinical judgment and baseline data. Use them as scaffolding and adjust to the student in front of you.

If you want structured CH practice with position-sorted word lists, both labeled minimal-pair sets, automatic error-pattern detection, and progress an SLP can review, Sound Safari was built for this workflow. 14-day free trial. No credit card required. Cancel anytime through Apple.