SHS Portal/English Language/Oral English: Monophthongs, Diphthongs and the IPA
Take Practice Quiz (5 Qs)
ENG • SHS 1Term 1WAEC / WASSCE SyllabusVIP Lesson

Oral English: Monophthongs, Diphthongs and the IPA

The 12 pure vowels and 8 diphthongs of English, long/short contrasts that trip Ghanaian speakers (seat/sit, fool/full), minimal pairs, and reading phonemic transcriptions in WASSCE Oral Paper 3.

Share Lesson with Students:
Real-World Context & Relevance in Ghana

A guide at Mole National Park announcing "Please board the vehicle to observe the animals" must keep /i:/ in "vehicle" distinct from /ɪ/ in a short sound, or the whole phrase blurs. Radio newsreaders at Joy FM train precisely on these contrasts so that "ship" and "sheep" never collapse in a market report from Makola.

Key Syllabus Learning Objectives

  • 1Produce and identify the 12 monophthongs using IPA symbols
  • 2Produce and identify the 8 diphthongs and classify them as closing or centring
  • 3Distinguish long/short vowel pairs that Ghanaian speakers commonly merge
  • 4Match IPA transcriptions to spoken words and vice versa in exam items
  • 5Explain the behaviour of the schwa in unstressed syllables
1

Why Sounds, Not Spelling: The IPA System

The International Phonetic Alphabet assigns one symbol to one sound. English vowel spelling is chaotic because one sound can be spelled many ways (/i:/ appears as ea, ee, ie, ei, igh, e, and even the name-letter "CSIE") and one spelling can represent many sounds (the "ow" in "low" /əʊ/ vs "cow" /aʊ/). WAEC Section A oral questions always ask about the SOUND represented by underlined letters — so translate to your mouth first, then to the symbol.
  • One bracket = one sound: /eɪ/ contains two sounds; "boat" contains three sounds /bəʊt/.
  • Long vowels carry the /ː/ mark; the mark signals length plus tenser quality.
  • Counting exercise: "boat" /bəʊt/ has 3 sounds (/b/, /əʊ/, /t/) although it has 4 letters — count what you HEAR.
  • Never trust "magic e" silently — "mate" /meɪt/, but "said" /sed/ breaks the pattern.
Practical Example:

Ghana place names defy English spelling habits: "Ho" is /hoʊ/, "Kpando" begins /kp/, "Tema" ends /ma/ — which is exactly why WAEC accepts only sound-based answers.

Core Takeaway:

Say the word aloud; your ears, not the spelling, give the phonemic answer.

2

The Twelve Monophthongs with Long/Short Contrasts

Five pairs contrast a long tense vowel with a short lax one, and five single short vowels complete the set of twelve. Master the pairs that Ghanaian languages do not distinguish: seat /si:t/ vs sit /sɪt/; full /fʊl/ vs fool /fu:l/; cart /kɑ:t/ vs cut /kʌt/; port /pɔ:t/ vs pot /pɒt/; birth /bɜ:t/ vs bird... (both /ɜ:/ — instead pair bird vs a short schwa word like "better").
  • /i:/ (sheep, field, CI) vs /ɪ/ (ship, fish, busy) — length AND tongue position differ.
  • /u:/ (food, blue, through) vs /ʊ/ (wood, could, put) — "could" and "good" are /ʊ/ even though spelled oo.
  • /ɔ:/ (door, all, caught) vs /ɒ/ (dog, hot, want) — /ɒ/ is barely heard in many Ghanaian accents; practise a short, open back sound.
  • /ɑ:/ (father, class, dance) vs /ʌ/ (but, love, blood) — "blood" is /blʌd/, a notorious spelling betrayal.
  • /ɜ:/ (nurse, work, early) vs /ə/ (the unstressed vowel in teacher, problem, second) — /ə/ NEVER appears in a stressed syllable.
  • Remaining short vowels: /æ/ (cat, hand) and /e/ (bed, said, many).
Practical Example:

A student telling a story: "I sat on the seat and felt full" produced laughs because /ɪ/ and /i:/, /ʊ/ and /u:/ were swapped — the minimal-pair contrast did real communicative work.

Core Takeaway:

Long/short pairs change word meaning — merging them changes what you say.

3

The Eight Diphthongs: Closing and Centring

A diphthong glides from one vowel quality to another within one syllable. The five CLOSING diphthongs end on a more central/lax position: /eɪ/ (day, weight, 8), /aɪ/ (five, sky, dye), /ɔɪ/ (boy, coin, voice), /əʊ/ (go, boat, toe), /aʊ/ (now, cow, ounce). The three CENTRING diphthongs glide toward schwa and link to a following vowel: /ɪə/ (near, here, CI-beer), /eə/ (hair, there, chair), /ʊə/ (tour, sure-ish cures, pure).
  • Ghanaian trap 1: /eɪ/ pronounced /aɪ/ ("say" = /saɪ/) — the first element of /eɪ/ starts mid-front, keep it flat.
  • Ghanaian trap 2: /əʊ/ pronounced /ɔ/ (monophthong) — "go" must glide: g-əʊ.
  • Diphthongs count as ONE sound per symbol pair, and one syllable — "hour" = /aʊə/, two diphthong-like elements but one syllable.
  • Spelling clues: igh/ye = /aɪ/ (high, dye); oe/oa/ow = /əʊ/ (shoe-type check: toe, boat, show); ou/ow = /aʊ/ (out, cow).
Practical Example:

Ghanaian English often says "no problem" with a flat /ɔ/: WASSCE expects /nəʊ ˈprɒbləm/ with the /əʊ/ glide intact.

Core Takeaway:

Hear the glide: a diphthong moves; a monophthong holds steady.

4

Minimal Pairs and the Ear Test

A minimal pair differs in exactly ONE sound and changes meaning: ship/sheep, full/fool, pan/pen, coo/cow, late/light. WAEC Oral Paper 3 Section A items: "choose the word whose underlined part is pronounced differently" — solve by pronouncing all four options aloud in your head, converting to sounds, and finding the odd vowel. Section B asks you to stress; Section C deals with rhythm and intonation (covered in SHS 3, but vowel control is prerequisite).
  • Drill set 1 (/i:/ vs /ɪ/): eat/it, leave/live, seed/sid, key/ki (avoid: all short).
  • Drill set 2 (/ʊ/ vs /u:/): book/bake not pair; book/took/look/full/pull are the /ʊ/ club WAEC loves.
  • Drill set 3 (/e/): dead/head/bread/said/again(any-)/friend — six spellings, one /e/.
  • Odd-one-out tactic: say each option twice; if your mouth makes the same vowel twice, it is not the answer.
Practical Example:

A teacher writes on the board: "The cheap sheep sleeps." Four /i:/ sounds in one sentence, zero /ɪ/ — a perfect Tongue-twister style drill used in SHS oral classes nationwide.

Core Takeaway:

Train your ear on minimal pairs; objective vowel questions become automatic.

WAEC / WASSCE Examiner Tips
  • In Oral Paper 3 Section A, always convert the underlined letters into sound BEFORE looking at the options; the trap option usually matches the spelling, not the sound.
  • Practise the classic WAEC "ea" set: ea = /i:/ (teach, clean), /e/ (dead, head, bread, said, weather), /ɪə/ (easy, idea) — three groups cover almost every past question on this letter pair.
  • For transcription items, write symbols inside slashes / / and a single diphthong inside one pair — examiners deduct for brackets and spacing mistakes, not just wrong sounds.
  • Long-vowel words WAEC repeats: seat, field, moon, through, door, cart, nurse, bird; short-vowel rivals: sit, fish, full, foot, pot, cut, about (schwa). Memorise them as a paired deck.
  • During the oral recording/passage-reading sections, the vowel quality carries half your "pronunciation" score; over-articulate long vowels and do not flatten diphthongs — clarity beats speed.
Common Candidate Pitfalls & Errors to Avoid
  • Answering by spelling instead of sound: choosing "meat" as containing /e/ because of "ea" — it is actually /i:/ like "meet".
  • Merger errors in production: saying /ʊ/ for /u:/ ("good" and "food" rhyming) — WAEC oral expects the contrast.
  • Treating /əʊ/ as the pure vowel /ɔ/ when reading aloud, losing the glide that marks standard pronunciation.
  • Confusing the two sounds inside a diphthong as two syllables — "time" is ONE syllable /taɪm/ with two vowel elements.
  • Pronouncing the final -ed of regular past tense as a full extra syllable everywhere; after /t/ or /d/ it is /ɪd/ ("wanted"), after voiceless sounds it is /t/ ("walked"), otherwise /d/ ("played").
Topic Mastery Checklist
  • Can I recite all 12 monophthongs with one example word each?
  • Can I classify the 8 diphthongs into closing and centring groups?
  • Can I produce and hear the minimal pairs ship/sheep, full/fool, cart/cut?
  • Can I transcribe common "ea" words into the right vowel symbol?
  • Can I explain why the schwa /ə/ never appears in a stressed syllable?
Test Your Knowledge

Ready for the Topic Quiz?

5 WAEC-standard multiple choice questions with instant explanations.

Start Quiz Now

Student Study Notes & Discussion

Share what you understood, ask questions, or drop helpful revision tips on Oral English: Monophthongs, Diphthongs and the IPA.

0 Notes
0/500 characters • Keep discussions respectful and educational
Loading community notes...