Diphthongs, Identification and Articulation for SS 1

Class: SS 1
Term: First Term
Week: 7
Age: 15 years
Duration: 60 minutes
Subject: English Language
Curriculum Theme: Listening and speaking
Focal competence: Appropriately pronouncing diphthongs
Key competencies/values: Communication; ICT and Digital Competencies; Digital Competencies; Collaboration
Skills:

• Appropriately articulating diphthongs in speech

Previous Lesson: Composing appropriate social-media posts
Topic: Diphthongs
Subject Matter: Meaning, Identification and Articulation of Diphthongs, Meaning and identification of diphthongs, articulation of diphthongs

Specific Objectives

By the end of the lesson, pupils/students should be able to:

Cognitive Domain

• Define diphthongs.
• Describe the characteristics of diphthongs.
• Identify the eight English diphthongs.

Affective Domain

• Appreciate the importance of correct diphthong pronunciation for clear communication.
• Show willingness to practice diphthong articulation.

Psychomotor Domain

• Articulate diphthongs correctly in words.
• Distinguish between different diphthongs through pronunciation.

Social Domain

• Collaborate with peers to practice diphthong articulation.

Reference Materials

The following resources were used in planning this lesson:

• 2025 New Revised Senior Secondary Education Curriculum (SSEC)
• Relevant State Unified Scheme of Work
• A suitable English Language textbook for SS 1
• The HeadTeacher Scheme of work For The New Revised Senior Secondary Education Curriculum (SSEC)

Instructional Materials

The teacher will teach this lesson with the aid of:

• Drawing of organs of speech
• Language laboratory
• Audiovisual materials
• Course books
• Face mirrors
• Flannel board
• Pronouncing dictionary
• Colour vowel chart

Rationale for the Lesson

Understanding and correctly articulating diphthongs is fundamental for clear and effective spoken English. This lesson helps students improve their pronunciation, which enhances their communication skills and boosts their confidence in speaking. Mastering diphthongs is essential for accurate comprehension and expression in various academic and social contexts.

Prerequisite/Previous Knowledge

Students should have a basic understanding of vowel sounds and their classification as taught in previous lessons.

Lesson Content/Board Summary

Diphthongs

Meaning of Diphthongs

A diphthong is a vowel sound that involves a glide from one vowel quality towards another within the same syllable. It is often referred to as a “gliding vowel” because the tongue and lips move from one position to another during its production. Unlike monophthongs (pure vowels), which have a single, stable vowel quality, diphthongs begin with one vowel sound and smoothly transition to a different vowel sound.

Identification of Diphthongs

There are eight common diphthongs in English. They can be identified by listening for the distinct glide from an initial vowel sound to a final vowel sound within a single syllable. Each diphthong is represented by a specific phonetic symbol.

The eight English diphthongs are:

1. /eɪ/ (as in “day,” “face”) – Glides from /e/ to /ɪ/.
2. /oʊ/ (as in “boat,” “go”) – Glides from /o/ to /ʊ/.
3. /aɪ/ (as in “my,” “time”) – Glides from /a/ to /ɪ/.
4. /aʊ/ (as in “cow,” “house”) – Glides from /a/ to /ʊ/.
5. /ɔɪ/ (as in “boy,” “coin”) – Glides from /ɔ/ to /ɪ/.
6. /ɪə/ (as in “near,” “here”) – Glides from /ɪ/ to /ə/.
7. /eə/ (as in “hair,” “bear”) – Glides from /e/ to /ə/.
8. /ʊə/ (as in “tour,” “pure”) – Glides from /ʊ/ to /ə/.

To identify them, pay attention to the movement of the tongue and lips. For example, in /eɪ/, the mouth starts relatively open and then closes slightly as the sound progresses.

Articulation of Diphthongs

Articulating diphthongs correctly requires a smooth, continuous glide from the starting vowel sound to the ending vowel sound without a break. The key is to ensure the mouth and tongue positions shift gradually.

Here are tips for articulating each diphthong:

1. /eɪ/ (as in “day”): Start with the mouth slightly open, similar to /e/, then move the tongue upwards and forwards, closing the mouth slightly towards an /ɪ/ sound.
2. /oʊ/ (as in “boat”): Begin with rounded lips, similar to /o/, then unround them slightly and move the tongue back and up towards an /ʊ/ sound.
3. /aɪ/ (as in “my”): Start with the mouth wide open, similar to /a/, then raise the tongue towards the front of the mouth, closing the mouth slightly towards an /ɪ/ sound.
4. /aʊ/ (as in “cow”): Begin with the mouth wide open, similar to /a/, then round the lips and move the tongue back and up towards an /ʊ/ sound.
5. /ɔɪ/ (as in “boy”): Start with rounded lips, similar to /ɔ/, then move the tongue upwards and forwards, closing the mouth slightly towards an /ɪ/ sound.
6. /ɪə/ (as in “near”): Begin with the tongue high and front, similar to /ɪ/, then relax the tongue towards a central, neutral /ə/ sound.
7. /eə/ (as in “hair”): Start with the tongue in a mid-front position, similar to /e/, then relax the tongue towards a central, neutral /ə/ sound.
8. /ʊə/ (as in “tour”): Begin with rounded lips and the tongue high and back, similar to /ʊ/, then relax the tongue towards a central, neutral /ə/ sound.

Practice with minimal pairs helps to distinguish and articulate diphthongs effectively. For example:

• /eɪ/: “bay” vs. “buy” (/aɪ/)
• /oʊ/: “boat” vs. “bought” (/ɔː/)
• /aɪ/: “light” vs. “late” (/eɪ/)
• /aʊ/: “loud” vs. “load” (/oʊ/)
• /ɔɪ/: “toy” vs. “tie” (/aɪ/)
• /ɪə/: “deer” vs. “dare” (/eə/)
• /eə/: “fair” vs. “fear” (/ɪə/)
• /ʊə/: “poor” vs. “paw” (/ɔː/)

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, Pair Work, Group Work, Individual Practice

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Questioning/Recall

Teacher’s Activity: The teacher greets the students and asks them to recall what they learned about monophthongs (pure vowel sounds) in the previous lesson. The teacher then introduces the topic of diphthongs as a continuation of vowel sounds.

Pupils’ Activity: Pupils respond to questions about monophthongs and listen attentively to the introduction of diphthongs.

Learning Point: Recall of monophthongs

Step 2: Meaning of Diphthongs

Time: 10 minutes

Teaching Skill: Explanation/Definition

Teacher’s Activity: The teacher explains what diphthongs are, emphasizing the “glide” from one vowel sound to another within a single syllable. The teacher uses examples like “day” and “boat” to illustrate the concept and writes the definition on the board.

Pupils’ Activity: Pupils listen, take notes, and ask questions for clarification. They repeat example words after the teacher.

Learning Point: Definition of diphthongs

Step 3: Identification of Diphthongs

Time: 10 minutes

Teaching Skill: Demonstration/Listing

Teacher’s Activity: The teacher introduces the eight English diphthongs, writing their phonetic symbols and example words on the board. The teacher pronounces each diphthong clearly, highlighting the initial and final vowel sounds of the glide.

Pupils’ Activity: Pupils listen to the pronunciation, observe the phonetic symbols, and copy the diphthongs and their examples into their notebooks.

Learning Point: Eight English diphthongs

Step 4: Practice in Identifying Diphthongs

Time: 10 minutes

Teaching Skill: Guided Practice

Teacher’s Activity: The teacher provides a list of words containing diphthongs and guides students to identify which diphthong is present in each word. The teacher may use the colour vowel chart or audiovisual materials to aid identification.

Pupils’ Activity: Pupils work individually or in pairs to identify the diphthongs in the given words, then share their answers with the class.

Learning Point: Diphthong identification practice

Step 5: Articulation of Diphthongs (Introduction)

Time: 5 minutes

Teaching Skill: Explanation/Demonstration

Teacher’s Activity: The teacher explains the mechanics of articulating diphthongs, focusing on the smooth transition of the tongue and lips. The teacher demonstrates the articulation of a few diphthongs using a face mirror to show lip movement.

Pupils’ Activity: Pupils observe the teacher’s mouth movements and try to mimic them using their own face mirrors if available.

Learning Point: Diphthong articulation mechanics

Step 6: Articulation of Diphthongs (Practice with Minimal Pairs)

Time: 10 minutes

Teaching Skill: Group Work/Drill

Teacher’s Activity: The teacher divides students into groups and provides them with minimal pairs (e.g., “day” vs. “die,” “boat” vs. “bought”) to practice articulating and distinguishing the diphthongs. The teacher moves around, providing feedback and correction.

Pupils’ Activity: Students work in groups, taking turns to articulate the minimal pairs and provide feedback to each other. They focus on producing the correct glide for each diphthong.

Learning Point: Correct diphthong articulation

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. What is a diphthong?
2. Describe how a diphthong is produced.
3. Name three English diphthongs and give an example for each.
4. Articulate the word “house” and identify the diphthong.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Diphthong understanding assessment

Step 8: Note-Taking

Time: 10 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on the meaning, identification, and articulation of diphthongs into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Recording lesson notes

Step 9: Conclusion

Time: 5 minutes

Teaching Skill: Reinforcement

Teacher’s Activity: The teacher reiterates the importance of correct diphthong pronunciation for clear communication and encourages students to continue practicing. The teacher praises their participation and effort.

Pupils’ Activity: Pupils listen to the concluding remarks and prepare for the next subject.

Learning Point: Diphthong importance reinforced

Continuous Assessment/Further Study

Type: Homework/Practice Exercise

Instruction: Identify and articulate the diphthongs in the following words. Write down the phonetic symbol for each diphthong you identify.

1. Coin
2. Fear
3. Goat
4. My
5. Town
6. Chair
7. Pure
8. Play

Lesson Keywords

• Diphthong – A vowel sound that glides from one vowel quality to another within the same syllable.
• Glide – The smooth transition between two vowel sounds in a diphthong.
• Articulation – The physical production of speech sounds.
• Monophthong – A pure vowel sound with a single, unchanging quality.
• Phonetic symbol – A written character used to represent a speech sound.

Differentiation

For students who struggle with diphthong articulation, provide additional one-on-one practice using the face mirror and exaggerated mouth movements. For advanced learners, challenge them to identify diphthongs in more complex sentences or explore regional variations in diphthong pronunciation.

Suggested Lesson Videos

For further understanding and visual demonstration, students can search for “Diphthongs English Pronunciation SS1” on YouTube.