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Sound Clusters and Digraphs in Pronunciation, Decoding and Reading for Primary 1

Explore Sound Clusters and Digraphs in Pronunciation, Decoding and Reading in English Studies for Primary 1.

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Note for teachers using this lesson plan

Before this lesson, ensure you have prepared the letter, word, and picture cards for common sound clusters and digraphs. The central concept is to help pupils correctly pronounce, decode, and read words containing these sound patterns. By the end of the lesson, pupils should be able to confidently identify and use sound clusters and digraphs to read simple words and write them legibly.

Class: Primary 1
Term: Third Term
Week: 2
Age: 6 years
Duration: 45 minutes
Subject: English Studies
Curriculum Theme: Pre-Reading Skills
Focal competence: Articulating consonant clusters appropriately while speaking and reading
Key competencies/values: Collaboration; Respect; Tolerance; Communication; Responsibility; Leadership
Skills:

  • Blending sounds to form words

Previous Lesson: Legible sentence writing and spacing in Handwriting
Topic: Sound Clusters
Subject Matter: Sound Clusters, Applying clusters, digraphs while decoding

Specific Objectives

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

Cognitive Domain

  • Identify common sound clusters and digraphs in words.
  • State words that contain specific sound clusters and digraphs.

Psychomotor Domain

  • Pronounce selected sound clusters correctly in familiar words.
  • Decode and read selected words containing sound clusters and digraphs.
  • Write words with sound clusters and digraphs legibly with correct formation and spacing.

Reference Materials

The following resources were used in planning this lesson:

  • 2025 Revised 9 Years Basic Education Curriculum
  • Relevant State Unified Scheme of Work
  • Effective English for Primary 1 by University Press PLC
  • The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

  • Approved publisher-neutral text
  • Letter, word and picture cards (e.g., cards for ‘bl’, ‘sh’, ‘clap’, ‘ship’)
  • Exercise books and pencils
  • Please and thank you game board

Rationale for the Lesson

This lesson is important for building foundational reading skills in Primary 1 pupils. Understanding sound clusters and digraphs helps pupils decode new words more easily, improving their pronunciation and reading fluency. This skill is essential for developing confident and independent readers.

Prerequisite/Previous Knowledge

Pupils should be able to recognize individual letter sounds and blend simple CVC (consonant-vowel-consonant) words.

Lesson Content/Board Summary

Sound Clusters and Digraphs

What are Sound Clusters (Blends)?

Sound clusters, also called blends, are two or three consonant letters that come together in a word. Each letter keeps its own sound, but they are blended together quickly when spoken.

Examples of common sound clusters:

  1. bl as in blue, black
  2. cl as in clap, clock
  3. fr as in frog, fruit
  4. st as in stop, star

What are Digraphs?

Digraphs are two letters that come together to make one new sound. The two letters work as a team to create a single sound, different from the sound of each letter alone.

Examples of common digraphs:

  1. ch as in chair, chips
  2. sh as in ship, fish
  3. th as in thin, bath
  4. ck as in duck, rock

Applying Sound Clusters and Digraphs in Decoding

Decoding means figuring out how to read a word by sounding out its letters or letter groups. When we decode, we break words into smaller, readable parts.

To decode words with clusters and digraphs:

  1. Look at the word carefully.
  2. Identify any sound clusters or digraphs (e.g., ‘bl’, ‘sh’).
  3. Sound out the letters or letter groups together.
  4. Blend all the sounds to read the whole word.

Example:

  1. For “clap”: sound out c-l-a-p. The “cl” is a blend.
  2. For “ship”: sound out sh-i-p. The “sh” is a digraph.

Word-Sorting Activity

We can sort words based on the sound clusters or digraphs they contain. This helps us practice identifying these sounds.

Example: Sort these words: clap, ship, blue, thin, frog, duck

  1. Words with ‘bl’: blue
  2. Words with ‘cl’: clap
  3. Words with ‘fr’: frog
  4. Words with ‘sh’: ship
  5. Words with ‘th’: thin
  6. Words with ‘ck’: duck

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Repetition, Individual Practice

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Review/Engagement

Teacher’s Activity: The teacher greets the pupils and quickly reviews individual letter sounds using flashcards. The teacher then asks pupils to blend simple CVC words like ‘cat’, ‘dog’.

Pupils’ Activity: Pupils respond to greetings, identify letter sounds, and blend CVC words.

Learning Point: Recall of letter sounds

Step 2: Explanation of Sound Clusters

Time: 7 minutes

Teaching Skill: Explanation/Demonstration

Teacher’s Activity: The teacher introduces the concept of sound clusters (blends) using word cards (e.g., ‘bl’, ‘cl’, ‘fr’, ‘st’). The teacher explains that two consonants come together but each sound is heard. The teacher models the pronunciation of words like “blue”, “clap”, “frog”, “stop”.

Pupils’ Activity: Pupils listen attentively and observe the word cards.

Learning Point: Understanding sound clusters

Step 3: Pronunciation Practice (Clusters)

Time: 6 minutes

Teaching Skill: Guided Practice/Repetition

Teacher’s Activity: The teacher displays more word cards with sound clusters (e.g., ‘glass’, ‘plant’, ‘brick’, ‘train’). The teacher models the pronunciation, emphasizing the blend, and has pupils repeat after them individually and as a class.

Pupils’ Activity: Pupils repeat the words with sound clusters after the teacher, focusing on correct pronunciation.

Learning Point: Cluster pronunciation practice

Step 4: Explanation of Digraphs

Time: 7 minutes

Teaching Skill: Explanation/Demonstration

Teacher’s Activity: The teacher introduces digraphs using word cards (e.g., ‘ch’, ‘sh’, ‘th’, ‘ck’). The teacher explains that two letters make one new sound. The teacher models the pronunciation of words like “chair”, “ship”, “thin”, “duck”.

Pupils’ Activity: Pupils listen attentively and observe the word cards.

Learning Point: Understanding digraphs

Step 5: Pronunciation Practice (Digraphs)

Time: 6 minutes

Teaching Skill: Guided Practice/Repetition

Teacher’s Activity: The teacher displays more word cards with digraphs (e.g., ‘fish’, ‘bath’, ‘rock’, ‘whistle’). The teacher models the pronunciation, emphasizing the single digraph sound, and has pupils repeat after them individually and as a class.

Pupils’ Activity: Pupils repeat the words with digraphs after the teacher, focusing on correct pronunciation.

Learning Point: Digraph pronunciation practice

Step 6: Decoding and Reading

Time: 5 minutes

Teaching Skill: Application/Decoding

Teacher’s Activity: The teacher writes a few words containing clusters and digraphs on the board (e.g., “clap”, “ship”, “blue”, “thin”). The teacher guides pupils to identify the sound clusters/digraphs and blend the sounds to read the words. The teacher also leads a simple word-sorting activity based on the sounds.

Pupils’ Activity: Pupils identify the sounds, blend them, read the words, and participate in the word-sorting activity.

Learning Point: Decoding words with sounds

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. Pronounce the word “stop”. Which sound cluster do you hear?
  2. What sound do the letters ‘sh’ make in “ship”?
  3. Read the word “chair”.
  4. Write the word “duck” correctly in your exercise book.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Assessment of understanding

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils to copy the essential Board Summary notes on sound clusters and digraphs into their notebooks.

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

Learning Point: Recording lesson content

Step 9: Conclusion

Time: 2 minutes

Teaching Skill: Consolidation

Teacher’s Activity: The teacher briefly reminds pupils that knowing sound clusters and digraphs helps them read and spell many words. The teacher encourages them to look for these sounds in books.

Pupils’ Activity: Pupils listen and acknowledge the importance of the lesson.

Learning Point: Reinforcement of concept

Continuous Assessment/Further Study

Type: Homework

Instruction: In your exercise book, write five words that have a sound cluster and five words that have a digraph. Draw a simple picture for one word from each group.

  1. Words with sound clusters (e.g., ‘bl’, ‘cl’, ‘fr’, ‘st’):
    1. ____________________
    2. ____________________
    3. ____________________
    4. ____________________
    5. ____________________
  2. Words with digraphs (e.g., ‘ch’, ‘sh’, ‘th’, ‘ck’):
    1. ____________________
    2. ____________________
    3. ____________________
    4. ____________________
    5. ____________________

Lesson Keywords

  • Sound – What we hear.
  • Cluster – Two or three consonant letters blended together (e.g., ‘bl’, ‘fr’).
  • Digraph – Two letters that make one new sound (e.g., ‘sh’, ‘ch’).
  • Blend – To smoothly combine sounds together.
  • Decode – To figure out how to read a word by sounding it out.

Differentiation

For weaker learners: Provide extra large letter and picture cards. Focus on one sound cluster or digraph at a time with repeated practice. Use a “Please and thank you” game board to reinforce recognition and pronunciation in a fun way. Provide pre-written words for tracing.

For faster learners: Challenge them to identify more complex words with sound clusters or digraphs from a storybook. Ask them to create their own sentences using words with these sounds. Encourage them to find other examples of clusters like ‘tr’, ‘gr’, ‘sp’ and digraphs like ‘ph’, ‘wh’.

Suggested Lesson Videos

For videos on sound clusters and digraphs for Primary 1, search on YouTube for: sound clusters digraphs primary 1 phonics

Teacher Guide for Using This Lesson Plan

To prepare for this lesson, ensure you have a variety of clear, large letter, word, and picture cards for the selected sound clusters (e.g., bl, cl, fr, st) and digraphs (e.g., ch, sh, th, ck). Begin by reviewing individual letter sounds to activate prior knowledge. Introduce sound clusters and digraphs separately, providing clear examples and modeling correct pronunciation. Encourage pupils to listen carefully and repeat the sounds and words. Use guided practice to help them decode words by blending sounds. During the word-sorting activity, ensure all pupils participate. Allow pupils to copy the Board Summary notes after the main teaching and practice activities. Pay attention to pupils who struggle with specific sounds and offer individual support. For faster learners, provide additional words or a short reading passage to apply their skills. Ensure the classroom environment is conducive to active participation and learning.

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Sound Clusters and Digraphs in Pronunciation, Decoding and Reading for Primary 1
About the author

Royal Alikor

Royal Alikor is an educator with six years of classroom teaching and three years of elementary school leadership experience. He develops and reviews practical, curriculum-aligned learning materials for Nigerian schools.

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