Articulation & Speech Sounds

Articulation refers to how clearly your child produces speech sounds using their lips, tongue, teeth, and palate. While all children make speech errors as they develop, most naturally acquire all sounds by age 8. Speech sound disorders occur when errors persist beyond the expected age or significantly affect how well a child can be understood. With appropriate therapy and consistent practice, most children can achieve clear speech.

10 sections
4 pro tips
4 external resources

Understanding Speech Sound Disorders

Speech sound disorders (SSDs) is an umbrella term for difficulties producing speech sounds that affect how well a child can be understood. These disorders may be 'functional' (no known cause) or 'organic' (due to structural, neurological, or sensory differences).

Two main types of functional speech sound disorders are commonly distinguished, though many children show features of both:

Articulation Disorders

  • Difficulty producing specific individual sounds
  • Errors are consistent (same error pattern each time)
  • May involve distortions, substitutions, or omissions
  • Example: Lisp ("th" for "s") or "w" for "r"
  • The child knows the sound but has difficulty producing it motorically

Phonological Disorders

  • Predictable, rule-based error patterns affecting multiple sounds
  • Involves the sound system (phonology) rather than motor production
  • Child CAN produce sounds correctly but uses them incorrectly
  • Examples: Fronting ("tat" for "cat"), stopping ("dop" for "stop")
  • Often results in significantly reduced intelligibility

Speech Sound Development by Age

Children acquire speech sounds in a predictable sequence. Understanding typical development helps you know what to expect and when to be concerned. Remember that development ranges are approximate—some children develop sounds earlier or later within the normal range.

By Age 2

  • p, b, m, n, h, w
  • Speech is approximately 50% understandable to unfamiliar listeners
  • May still simplify many words

By Age 3

  • t, d, k, g, f, y
  • Speech should be 50-75% understandable to strangers
  • Strangers should understand most of what child says

By Age 4

  • v, l (in some words), beginning blends
  • Speech should be 75-90% understandable
  • Most phonological processes should be disappearing

By Age 5

  • l (fully mastered), s, z, sh, ch, j, blends (bl, pl, st, etc.)
  • Speech should be 90%+ understandable
  • May still have difficulty with 'r' and 'th'

By Ages 6-8

  • r (and all variations), th (voiced and voiceless), zh
  • All sounds should be clear and consistent by age 8
  • Complex blends (spr, str, scr) mastered

Common Phonological Processes

Phonological processes are systematic simplification patterns that young children use while learning to talk. These are normal in early speech development but should disappear by certain ages. If they persist, therapy may be needed.

Processes That Should Disappear by Age 3

  • Final consonant deletion: "ca" for "cat"
  • Reduplication: "wawa" for "water"
  • Consonant assimilation: "gog" for "dog"
  • Velar fronting: "tat" for "cat" (k→t, g→d)
  • Prevocalic voicing: "big" for "pig"

Processes That Should Disappear by Age 4-5

  • Stopping: "dop" for "shop" (fricatives→stops)
  • Cluster reduction: "poon" for "spoon"
  • Gliding: "wabbit" for "rabbit"
  • Deaffrication: "ship" for "chip"
  • Fronting of sh/ch/j: "sue" for "shoe"

Speech Intelligibility Guidelines

Intelligibility refers to how well others can understand a child's speech. This is one of the most important factors in determining if a child needs speech therapy.

  • Age 2: 50% intelligible to unfamiliar listeners
  • Age 3: 75% intelligible to unfamiliar listeners
  • Age 4 and beyond: 90-100% intelligible to unfamiliar listeners
  • Parents typically understand more than unfamiliar listeners
  • Context helps—intelligibility may be higher in familiar contexts
  • If you frequently need to 'translate' for your child, consider evaluation

Treatment Approaches

Speech-language pathologists use different approaches depending on whether the child has articulation or phonological errors, the severity, and individual factors.

Traditional Articulation Therapy

  • Targets individual sounds one at a time
  • Follows hierarchy: isolation → syllables → words → phrases → sentences → conversation
  • Uses modeling, cueing, and feedback
  • Best for articulation disorders with consistent errors on few sounds
  • High repetition and practice

Phonological Approaches

  • Targets patterns rather than individual sounds
  • Changing one pattern may improve multiple sounds
  • Approaches include Cycles, Minimal Pairs, Multiple Oppositions
  • Best for children with multiple error patterns
  • Often produces faster generalization

Motor-Based Approaches

  • Focus on the movement aspects of speech production
  • May include oral motor exercises (controversial—limited evidence)
  • Useful for children with motor planning difficulties
  • Examples: PROMPT, other tactile-based approaches

Home Practice Principles

Home practice is essential for speech sound progress. Research shows that distributed practice (short, frequent sessions) is more effective than massed practice (long, infrequent sessions). Aim for 5-10 minutes of focused practice daily rather than 30 minutes once a week.

Practice Hierarchy

  • Isolation: Just the sound by itself (/s/, /r/)
  • Syllables: Sound + vowel (sa, se, si, so, su)
  • Words: Target sound in words (sun, bus, basket)
  • Phrases: Short phrases with target words (big sun, yellow bus)
  • Sentences: Full sentences with target words
  • Structured conversation: Talking about pictures, describing activities
  • Carryover: Using correct sounds in natural conversation

Keys to Effective Practice

  • Work at the level your child can succeed (80% accuracy)
  • If accuracy drops below 60%, move back a level
  • Make it fun with games and activities
  • Use positive reinforcement—praise effort and progress
  • Keep sessions short and positive (stop before frustration)
  • Follow your SLP's guidance on what to practice
  • Practice throughout the day, not just in formal sessions

Fun Practice Activities

Games and Activities

  • Sound Hunts: Find items around the house containing the target sound
  • Memory Match: Use word cards with target sounds
  • Go Fish: Play with cards containing target words
  • Board Games: Practice a word before each turn
  • I Spy: "I spy something that starts with /s/"
  • Silly Sentences: Create funny sentences loaded with the target sound
  • Tongue Twisters: Age-appropriate tongue twisters for practice
  • Art Projects: Name supplies and creations with target sounds

Daily Life Practice

  • Reading Together: Point out target sounds in books
  • Meal time: Practice target words for foods
  • Getting dressed: Practice clothing vocabulary with target sounds
  • Car rides: Play 'I Spy' or name things you see
  • Grocery shopping: Find items with target sounds
  • Bath time: Practice body parts, toy names, actions

Common Challenging Sounds

The /r/ Sound

  • One of the most common targets in speech therapy
  • Many variations (initial r, vocalic r in 'car', 'bird', 'bear')
  • May not be fully mastered until age 7-8
  • Requires complex tongue positioning
  • Often needs professional guidance to correct

The /s/ Sound (Lisping)

  • Frontal lisp: Tongue between teeth (sounds like 'th')
  • Lateral lisp: Air escapes over sides of tongue (slushy sound)
  • Frontal lisps may resolve naturally; lateral lisps rarely do
  • All lisps should be addressed by age 4-5
  • Tongue placement is key to correction

The /l/ Sound

  • Often substituted with /w/ or /y/
  • Should be mastered by age 5-6
  • Tongue tip placement is crucial
  • Practice in 'light' position (tip to ridge) and 'dark' position (back of mouth)

The 'th' Sounds

  • Voiced 'th' (as in 'the') and voiceless 'th' (as in 'think')
  • Among the last sounds developed (age 6-8)
  • Requires tongue placement between teeth
  • Common substitutions: f/th, d/th, v/th

Supporting Your Child

Beyond formal practice, how you respond to your child's speech errors matters. The goal is to provide good models without making your child feel bad about their speech.

Helpful Strategies

  • Model correct production naturally (recasting): Child says 'wabbit', you say 'Yes, a rabbit!'
  • Don't ask your child to repeat words correctly—just model
  • Speak clearly and at a moderate pace
  • Get face-to-face so your child can see your mouth
  • Acknowledge what your child says, even if unclear
  • Don't pretend to understand if you don't—ask for clarification kindly
  • Celebrate effort and progress, not perfection

Things to Avoid

  • Don't correct or criticize speech errors directly
  • Don't ask your child to 'say it again' or 'say it right'
  • Don't let siblings or peers tease about speech
  • Don't show frustration or impatience with unclear speech
  • Don't talk about speech problems negatively in front of your child

Self-Monitoring Skills

As children progress in therapy, developing self-monitoring skills helps them maintain gains and use correct sounds independently. This is the ultimate goal—not needing an adult to remind them.

  • Teach your child to think about their target sound before speaking
  • Help them listen to their own productions
  • Practice identifying correct vs. incorrect productions (in others first, then self)
  • Encourage self-correction without being harsh
  • Celebrate when they catch and fix their own errors
  • Use a slightly slower speaking rate when focusing on sounds

When to Seek Evaluation

  • Speech is significantly less clear than peers of the same age
  • Strangers have difficulty understanding your child after age 3
  • Your child is frustrated by not being understood
  • Speech errors persist beyond expected age ranges
  • Your child avoids speaking or seems self-conscious about speech
  • Teachers or caregivers express concern about speech clarity
  • You're frequently 'translating' for your child
  • Your child is difficult to understand even in context

Expert Tips

The 'Strive for Five' Method

Practice sounds in sets of 5 repetitions. This chunking method helps maintain focus and builds consistency without overwhelming your child. Five words, five sentences, or five minutes—whatever works!

Model, Don't Correct

Instead of saying 'That's wrong, say it again,' simply model the correct production naturally: Child says 'wabbit'—you respond 'Yes, that's a rabbit! A fluffy rabbit!' Children learn better from models than corrections.

Short and Frequent Beats Long and Rare

Research shows 5 minutes of practice daily is more effective than 30 minutes once a week. Build practice into daily routines rather than creating separate 'homework time.'

Context Matters

It's normal for children to use correct sounds in practice but still make errors in conversation. This is part of the learning process—sounds need to become automatic, which takes time and practice.

Related Resources

Speech & Language Milestones

Understanding typical speech and language development helps you know what to expect and when to seek help. Every child develops at their own pace—milestones represent ranges, not exact deadlines. Use these benchmarks as a guide, and remember that variation is normal. However, if you have concerns, trust your instincts and seek an evaluation.

Learn more

Childhood Apraxia of Speech (CAS)

Childhood Apraxia of Speech (CAS) is a rare neurological motor speech disorder where the brain has difficulty planning and coordinating the precise movements needed for speech. Unlike other speech disorders, the muscles themselves are not weak—it's the motor planning that's affected. CAS requires specialized, intensive therapy from an SLP trained in motor speech disorders. Children will not outgrow CAS without treatment, but with appropriate intervention, significant progress is achievable.

Learn more

Home Practice Strategies

Research consistently shows that home practice significantly improves therapy outcomes. Children who practice at home make faster progress than those who rely on therapy sessions alone. The key is short, frequent, FUN practice sessions—5-10 minutes daily is more effective than 30 minutes once a week. Make practice a positive routine, not a chore.

Learn more

Recommended Apps

Speech therapy apps can supplement professional therapy and make home practice engaging. However, apps should complement—not replace—working with a speech-language pathologist. The best apps are those recommended by your therapist to match your child's specific goals. Here are some SLP-recommended apps across different goal areas.

Learn more

Still Have Questions?

Our team is here to help. Book a free consultation to discuss your concerns and learn how we can support you or your child.