4.2 Phonemes, Graphemes, and Morphemes

ALTA Competency Exam for Multisensory Structured Language Education CALT

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1 Introduction & Exam Overview

1.1 Current Exam Facts 1.2 Eligibility and Therapy-Level Training 1.3 Registration, Prometric, and Study Plan

2 Language Development: Oral and Written Continuum

2.1 Oral-to-Written Language Continuum 2.2 Receptive and Expressive Oral Language 2.3 Receptive and Expressive Written Language

3 Language Development: Phonological Processing & Research

3.1 Atypical Literacy Development and Remediation 3.2 Phonological Processing Components 3.3 Research on Language Development

4 Structural Linguistics: Phonology

4.1 Continuum of Phonological Skills 4.2 Phonemes, Graphemes, and Morphemes 4.3 Articulatory Gestures

5 Structural Linguistics: Alphabetic Principle & Syllables

5.1 Alphabetic Principle and Sight-Word Recognition 5.2 Six Syllable Types 5.3 Syllable Division Patterns

6 Structural Linguistics: Accent, Morphology & Orthography

6.1 Accent Placement and Sound-Symbol Influences 6.2 Morphology: Roots and Affixes 6.3 Orthography, Affixing Rules, and Etymology

7 Structural Linguistics: Syntax, Semantics & Comprehension

7.1 Syntax, Sentence Structure, and Punctuation 7.2 Semantics and Pragmatics 7.3 Comprehension Strategies and Text Structures

8 Structural Linguistics: Written Language & Research

8.1 Handwriting and the Writing Process 8.2 Research on Structural Linguistics

9 Dyslexia: Definition, Brain & Neurology

9.1 Defining Dyslexia and Instructional Impact 9.2 Brain Anatomy and the Reading Network 9.3 Neurological Aspects of Learning Disabilities

10 Dyslexia: Related Issues, Comorbidity & History

10.1 Behavioral, Social, and Emotional Issues 10.2 Comorbid Disorders 10.3 Historical Pioneers in Dyslexia

11 Dyslexia: Research & Executive Function

11.1 Research on Dyslexia and Related Disorders 11.2 Executive Function and Dyslexia

12 Psychoeducational Assessment: Foundations

12.1 Assessment Terminology and Purposes 12.2 Essential Components of a Dyslexia Evaluation 12.3 Formal and Informal Assessment Instruments

13 Psychoeducational Assessment: Interpretation & Error Analysis

13.1 Interpreting Standard Scores, Percentiles, and Stanines 13.2 Using Results to Guide Services 13.3 Error Analysis of Work Samples 13.4 Psychoeducational Research

14 MSL Strategies: Multisensory, Systematic & Analytic

14.1 Simultaneous VAKT Multisensory Strategies 14.2 Systematic and Cumulative Instruction 14.3 Synthetic vs Analytic Instruction

15 MSL Strategies: Direct Instruction, Automaticity & Diagnosis

15.1 Direct vs Indirect Instruction 15.2 Automaticity in Literacy Development 15.3 Diagnostic Teaching

16 MSL Strategies: Program Principles & Theoretical Models

16.1 MSLE Program Content and Principles 16.2 Metacognition and Learning Environments 16.3 Simple View of Reading 16.4 Scarborough's Reading Rope

17 Federal Laws: IDEA, Section 504 & ADA

17.1 Federal Disability Law Landscape 17.2 Federal Eligibility Guidelines 17.3 Documentation Decisions and Accommodations 17.4 Historical Development of Disability Law

18 Professional Ethics: ALTA Code of Ethics

18.1 ALTA Code of Ethics Overview 18.2 Confidentiality, Competence, and Credentials 18.3 Ethical Standards with Parents and Colleagues

19 Professional Communication

19.1 Professional Student Reports 19.2 Strengths- and Needs-Based Language 19.3 Communicating with Parents, Students, and Colleagues

4.2 Phonemes, Graphemes, and Morphemes

Key Takeaways Explain This Topic AI

A phoneme is the smallest unit of sound that distinguishes meaning in a language

A grapheme is the letter or letter combination that represents a phoneme in writing

A morpheme is the smallest unit of meaning (free or bound), not merely a sound or letter unit

English has roughly 44 phonemes represented by more than 250 grapheme patterns, creating opacity that dyslexic readers must be taught explicitly

CALT therapists must classify digraphs, blends, diphthongs, and morphemes accurately because each unit drives different instructional moves

Last updated: July 2026

4.2 Phonemes, Graphemes, and Morphemes

Quick Answer: Phonemes are meaning-distinguishing speech sounds; graphemes are the letters or letter groups that spell those sounds; morphemes are the smallest units of meaning. MSLE therapists must keep sound, symbol, and meaning units separate while teaching how they map onto one another in English.

Objectives 2.A.3–2.A.6 ask CALT candidates to define and apply the core structural units that underlie decoding and spelling. Confusion among these terms produces wrong instructional decisions—for example, teaching sh as two phonemes, or treating -ed only as the letters e and d without addressing its three pronunciations as one past-tense morpheme.

Phonemes: Smallest Contrastive Sounds

A phoneme is the smallest unit of sound that can change meaning. English contrasts illustrate the point:

/p/ versus /b/ in pat / bat
/ĭ/ versus /ă/ in pin / pan
/s/ versus /z/ in sip / zip

Phonemes are abstract categories, not identical physical productions. The /p/ in spin is unaspirated compared with the /p/ in pin , yet English speakers treat both as the same phoneme. Allophones are predictable phonetic variants of one phoneme; therapists need the phoneme level for literacy, while articulatory detail (place, manner, voice) supports production and discrimination.

Most analyses place English at about 42–44 phonemes , depending on dialect and whether certain diphthongs are counted separately. That inventory includes:

Consonant phonemes — e.g., /b/, /t/, /sh/, /ng/
Vowel phonemes — short, long (tense), r-controlled, and diphthongs such as /oi/ and /ou/

Students must learn to hear phonemes that are not "letter names." The phoneme /ĕ/ is not the letter name "E"; the digraph th represents one phoneme (/th/ voiced or unvoiced), not two.

Graphemes: How Phonemes Are Spelled

A grapheme is a letter or letter combination that represents a phoneme. Graphemes include:

Grapheme type Definition Examples
Single-letter grapheme One letter → one phoneme s → /s/ in sun ; a → /ă/ in cat
Digraph Two letters → one phoneme sh , ch , th , ck , oa , ee
Trigraph Three letters → one phoneme tch , igh , dge
Quadgraph (less common label) Four letters → one phoneme eigh in eight (/ā/)

English is an opaque orthography: roughly four dozen phonemes are spelled with well over two hundred grapheme patterns when position, etymology, and morphology are considered. That opacity is why structured, cumulative phoneme–grapheme instruction is essential for students with dyslexia.

Digraphs Versus Blends

This distinction is heavily tested and clinically critical:

Digraph = two (or more) letters representing one phoneme ( sh = /sh/)

Blend (cluster) = two or more letters representing two or more phonemes that are coarticulated ( st = /s/ + /t/; str = /s/ + /t/ + /r/)

In ship , there are three phonemes: /sh/ /ĭ/ /p/. In stop , there are four: /s/ /t/ /ŏ/ /p/. Students who "hear" st as one sound need phoneme segmentation practice inside the blend.

Vowels, Vowel Teams, and Diphthongs
Short vowels commonly appear in closed syllables ( cap , pet , sit , hot , cup )
Long vowels may be spelled with VCe, open syllables, or vowel teams ( cake , me , boat )

Vowel teams are graphemes of two or more vowel letters (or vowel + w / y ) representing one vowel phoneme or a diphthong ( ai , oa , ee , oy )

Diphthongs are vowel phonemes that glide from one tongue position to another within one syllable (/oi/ in boil , /ou/ in out )

Therapists teach the phoneme first as a sound concept, then attach the most common grapheme, then introduce less frequent graphemes for the same phoneme (e.g., /ā/ as a_e , ai , ay , eigh ).

Morphemes: Smallest Units of Meaning

A morpheme is the smallest language unit that carries meaning. Morphemes are not defined by sound count or letter count:

Free morphemes stand alone as words: book , run , happy

Bound morphemes must attach to a base: prefixes ( un- , re- ), suffixes ( -s , -ed , -ness ), and bound roots ( -ject , struct )

Examples that clarify the difference from phonemes and graphemes:

Cats has two morphemes ( cat + plural -s ) and four phonemes (/k/ /ă/ /t/ /s/)
Restarted has three morphemes ( re- + start + -ed )

The past-tense morpheme -ed has one meaning but three common pronunciations: /t/ ( jumped ), /d/ ( played ), /ĭd/ or /əd/ ( wanted )

Morphology intersects phonology when suffix pronunciation depends on the final phoneme of the base (voiceless → /t/; voiced → /d/; /t/ or /d/ final → extra syllable). Domain 2.D expands roots and affixes; here, 2.A requires you to recognize that meaning units are a separate structural layer from sound and spelling units.

Putting the Three Units Together

Use this decision frame when analyzing a word for instruction:

Meaning first when morphology is productive — identify base and affixes

Map graphemes to phonemes within each morpheme — especially for opaque spellings preserved by morphology ( health keeps heal 's grapheme pattern)

Count phonemes for segmentation/spelling — digraphs count as one; blends count as separate phonemes
Worked Comparisons

Word Phonemes (approx.) Graphemes of note Morphemes
fish /f/ /ĭ/ /sh/ (3) f , i , sh 1 free ( fish )
shops /sh/ /ŏ/ /p/ /s/ (4) sh , o , p , s 2 ( shop + plural -s )
unhappy /ŭ/ /n/ /h/ /ă/ /p/ /ē/ (varies by transcription) un , happy as spelling units 2 ( un- + happy )
knight /n/ /ī/ /t/ (3) kn , igh , t 1 free ( knight )

Notice knight : silent letters and the trigraph igh show why grapheme knowledge cannot be reduced to "one letter, one sound," while phoneme count remains three for most dialects.

How the Phonemic Awareness–Literacy Relationship Changes Over Time (2.A.6)

Objective 2.A.6 is easy to overlook because it is not a definition—it asks you to describe a relationship that shifts across development .

The relationship is reciprocal, not one-directional. Phonemic awareness makes early decoding and spelling possible; then learning letters and spellings sharpens phonemic awareness in return. Children who have never been taught an alphabetic writing system generally cannot segment individual phonemes on demand. Print instruction is part of what builds full phoneme awareness, which is why MSLE teaches phonemes with their graphemes rather than as pure oral drill.

What changes as students develop:

Stage Direction of influence Instructional implication

Pre-reading Phonological sensitivity at the syllable and rhyme level develops from oral language alone Build large-unit awareness orally; introduce letters early

Beginning reading PA → decoding dominates; phonemic awareness is the strongest single predictor of early word-reading success Explicit blending/segmenting tied to graphemes

Developing reading Reciprocal — decoding and spelling instruction drives more precise, more analytic phoneme awareness Use spelling as the proving ground for phoneme awareness

Skilled reading Phoneme awareness is assumed and largely automatic ; its predictive power fades and vocabulary, morphology, and background knowledge become the limiting factors Shift emphasis to morphology, syntax, and comprehension

Two exam-facing consequences:

Predictive power declines with age. In kindergarten and grade 1, phonemic awareness is the best predictor of reading outcomes. By the middle grades, language comprehension variables predict far more. A stem asking what best predicts reading achievement therefore depends on the grade level given.

Persistent phoneme-level weakness in an older student is a red flag, not a stage. Typically developing readers consolidate phoneme awareness early. An adolescent who still cannot delete or substitute medial phonemes is showing the core phonological deficit of dyslexia, and still needs phoneme-level work—embedded in the multisyllabic, morphological material appropriate to their age.

Clinical and Exam Applications

CALT-level errors often look like this on exam stems:

Calling ch in chop a blend (incorrect — digraph, one phoneme)
Saying str is one phoneme (incorrect — three-phoneme blend)
Claiming -ing is only a grapheme with no meaning (incorrect — bound morpheme)
Equating letter names with phonemes (incorrect — letter name "Q" is /kyoo/, not the phoneme /k/)

Accurate labels drive accurate lessons: digraphs are taught as single sound–symbol units; blends are segmented; morphemes are taught for meaning and for spelling patterns that phonics alone cannot explain.