Down Syndrome Speech Therapy IEP Goals: Speech, AAC, and Communication Plans

Your child understands far more than they can say. That gap between receptive and expressive language is one of the defining features of the Down syndrome communication profile — and it's the gap that causes the most frustration for everyone: the child, the parents, and the school team.

A strong communication plan in the IEP addresses the gap from multiple angles, not just speech therapy alone.

Why Speech Is Harder for Students With Down Syndrome

The communication challenges in Down syndrome stem from specific anatomical and neurological factors, not from lack of effort or cognitive capacity.

Oral-motor dyspraxia makes it physically difficult to plan and execute the precise motor sequences needed for speech. The brain knows the word; the mouth can't produce it reliably.

Oral hypotonia — low muscle tone in the tongue, lips, and jaw — reduces articulatory precision. Combined with relative macroglossia (the tongue fills more of the oral cavity), this creates persistent speech intelligibility challenges even with years of therapy.

Auditory working memory limitations mean that long verbal instructions and complex sentence models don't survive the processing loop. A child can't imitate a sentence they can't hold in auditory memory long enough to reproduce.

These factors make speech development slower but not impossible. The trajectory is different from typical development, and IEP goals need to reflect that trajectory rather than applying standard speech-language milestones.

Speech Therapy Goals That Match the Profile

Articulation: "During structured 15-minute speech therapy sessions, the student will produce target CVC words with final consonant inclusion, intelligible to an unfamiliar listener, in 70% of attempts across 4 consecutive sessions."

Multi-word utterances: "Given visual sentence strip models and verbal prompts, the student will produce 3-word phrases (subject + verb + object) to request, comment, or protest during structured activities in 4 out of 5 opportunities over a 30-day data period."

Speech-motor coordination: "During speech-language sessions, given a visual model and individualized cues, the student will produce selected target sounds in functional words using the required lip, tongue, and jaw movements with 80% accuracy across 4 consecutive sessions."

Speech goals should specify service delivery: how many minutes per week, push-in vs. pull-out, individual vs. small group. For inclusion, push-in therapy — where the SLP works with the student in the general education classroom — keeps the student in the LRE while providing specialized instruction. Pull-out should be limited and justified by the need for a distraction-free environment for specific articulation drills.

AAC Goals: Communication Beyond Speech

Augmentative and Alternative Communication isn't a replacement for speech. It's a parallel channel that provides functional communication while speech continues to develop. AAC includes low-tech options (picture exchange cards, core-vocabulary boards, communication books) and high-tech options (speech-generating devices, tablet-based AAC apps).

The fear that AAC will "replace" speech and the child will stop trying to talk is one of the most persistent and most thoroughly debunked myths in special education. Research consistently shows the opposite: AAC supports speech development by reducing communication frustration, providing a model for word production, and giving the child successful communication experiences that motivate continued effort.

AAC initiation: "Given access to a programmed AAC device with at least 30 core vocabulary words, the student will independently navigate to and select the appropriate symbol to make a request, comment, or protest in 4 out of 5 opportunities during structured classroom activities, as measured by SLP data collection over 30 days."

AAC expansion: "Using a speech-generating device, the student will combine 2–3 symbols to form grammatically structured phrases (agent + action, or action + object) during at least 5 different communicative exchanges per school day, across 4 out of 5 observed days over a data collection period."

Multimodal communication: "During classroom and social activities, the student will use a combination of verbal speech, AAC, and/or key word signs to communicate wants, needs, and social greetings with at least 80% success across 5 different communication partners (teachers, aides, peers) over a 30-day period."

The IEP should also specify who programs the AAC device, how often vocabulary is updated, and which team members are trained to support AAC use across settings. If only the SLP knows how the device works, the student is limited to using it during therapy sessions.

Key Word Signing

Key word signing — using signs from Makaton, Signalong, or ASL alongside spoken words — provides a bridge for children whose speech intelligibility is limited but who can produce manual gestures. It's not the same as learning a sign language; it's highlighting key words in spoken sentences with corresponding signs.

Key word signing is particularly effective for students with Down syndrome because motor imitation is a relative strength. The child signs the word while attempting to say it, giving two channels for the communication partner to understand the message.

Signing goal: "Given a set of 15 functional vocabulary signs (eat, drink, more, help, stop, go, bathroom, please, thank you, yes, no, want, play, all done, wait), the student will independently produce the sign paired with a verbal attempt in 80% of communicative opportunities across school settings over 4 consecutive weeks."

Communication Plans for Nonverbal Students

For students who are minimally verbal or nonverbal, the IEP needs a comprehensive communication plan — not just speech therapy goals. The plan should specify:

Primary communication mode: What system does the student use most effectively right now? This is the mode all team members must be trained to use and respond to.

Backup communication mode: If the AAC device is unavailable (battery dead, forgotten at home), what low-tech alternative is immediately available? A laminated core board in the backpack, a set of picture exchange cards, or established gesture conventions.

Communication across settings: The AAC device or communication system must travel with the student — to lunch, PE, the bus, specials, and the playground. A device locked in the SLP's office during recess is useless when the student wants to ask a peer to play.

Staff training: Which team members have been trained on the student's communication system? The IEP should specify training requirements and a timeline for training new staff (substitute teachers, new aides, specials teachers).

The Down Syndrome IEP & Inclusion Toolkit includes SMART speech and communication goals organized by the Down syndrome profile, AAC implementation guidance, and a communication plan template that ensures your child's communication system works across every setting in the school day.