Grapheme-Phoneme Mapping - Using techniques to help students connect sounds to letters, boosting orthographic mapping and decoding skills
English uses an alphabetic writing system, meaning that the letters of the alphabet are used to represent the sounds in spoken words. The alphabetic code primarily represents the sounds of words, therefore we must use sounds when we are first learning to read and write.
In written English there are 26 letters of the alphabet which are used to represent about 44 speech sounds. This means that a student’s ability to decode an unknown printed word depends on their knowledge of grapheme-phoneme correspondences and their ability to blend them quickly. Making grapheme to phoneme connections is essential for reading, and beginning readers will use effortful decoding strategies to read new words.
Orthographic mapping
When we have seen and read (decoded) a word many times, it is stored in long-term memory as a unique letter string and can be read instantly as a ‘sight’ word. This process is referred to as ‘orthographic mapping’ (Ehri, 2015).
There are three main components that contribute to orthographic mapping occurring:
1. Automatic letter-sound associations: correctly identifying letter names and the phonemes they represent;
2. Proficient phonemic awareness: automatic access to sounds in spoken words and being able to perform phoneme manipulation;
3. The meaning: linking the decoded word to its meaning, which helps anchor it in long-term memory.
Teach new correspondences explicitly
When introducing a new sound and corresponding grapheme, it is important to follow a routine to ease students’ cognitive load.
Introduce the new letter
Sunshine Sound Cards (Pack 1) Simple Code
Say, today we are going to learn a new short vowel sound /ĕ/. The letter for this is ‘e’. It is the first sound in the word egg. You make the /ĕ/ sound at the start.
/ĕ/ is an open sound. Say egg. Your mouth is open in a smile. You use your voice. Look in the mirror. What is your mouth like when you say this sound? Guide students to see what their mouth is doing.
Show the letter ‘e’ on the front of the card and say, here is the letter that spells /ĕ/. The name of the letter is ‘e’.
Let’s listen for /ĕ/ at the beginning of some words. Say each word after me. Edge, echo, enemy, eddy, edit.
Show the front of the card and say. This is the letter ‘e’. We write it like this. When you write ‘e’ say /ĕ/. Students now write it in the air.
Sunshine Word Cards (Pack 1) Simple Code
We can read words with the /ĕ/ sound and the letter ‘e’. Use the word cards from pack 1.
Watch as I do it. I point to each letter and say the sound. Then I blend those sounds together quickly to say the word: p-e-n ➞ pen.
Now it’s your turn: pen pet net.
Embedded picture mnemonics
The idea of these pictures is to remind students of the sound for that letter. This is called a mnemonic or memory aid. Embedded picture mnemonics are pictures that contain the letter embedded within them. For example, the picture for /f/ is a fish shaped into the letter ‘f’ shape.
Elkonin boxes
Download the free Elkonin box templates from the Decodables Free Resources section of the Sunshine Books website – https://www.sunshine.co.nz/download-resources/ Elkonin boxes, also known as sound boxes, are a useful resource which help emerging readers build phonological awareness skills by segmenting words into individual sounds (phonemes). Children push a counter into one box as they say each sound in the word.

These boxes can be used as follows:
- Pronounce a target word slowly, stretching it out by sound.
- Ask the child to repeat the word.
- Have the child count the number of phonemes in the word, not necessarily the number of letters. For example, wish has three phonemes and will use three boxes. /w/, /i/, /sh/
- Direct the child to slide one coloured counter, Unifix cube, or corresponding letter into each cell of the Elkonin box template as he/she repeats the sound.
Guided sound blending
Guided sound blending is a routine required in teaching students to read words using the grapheme-phoneme correspondences they know. At first, blending is achieved sound by sound.
Additive sound blending
Additive sound by sound blending is when the teacher writes or uses magnetic letters to show the first letter in a word.
- The students are cued to make the sound.
- Next, the teacher writes or adds the second letter and blends those two sounds with the students.
- Finally the teacher adds another letter and blends all three letters with the students as they slowly slide their finger under the letters.
- This can be repeated and the teacher can say ‘blend it’ as the students blend the sounds to read the word.
- Repeat.
- Point to the word, say ‘what word?’
- Wait for students to say the entire word.
- Use the word in a sentence or ask a student to say the word in a sentence. Mention multiple meanings to the students, show pictures or have real items to share.
Whole word blending
● The teacher touches each letter to cue the students to produce the sound represented by each grapheme, and then blends the whole word together. For example, write the word rash on the board. Underline and point to ‘r’. Say “Sound?” Students should say /r/.
● Touch each successive letter saying ‘Sound?” for each one /r/ – /a/ – /sh/. Then guide the blending of the whole word by running your finger under the word left to right, about one phoneme per half a second.
● Slowly compress the extended version of rrraaashsh to rash.
● Point to the word and say “The word is rash.”
● Check for understanding and/or have the students use the word in a sentence (connect to the word meaning).
As students practice and are repeatedly exposed to words in print they will become more automatic and fluent and begin to recognise words as a whole. They will become ‘sight’ words, meaning they are instantly recognised without conscious decoding (orthographically mapped).
Silent blending
As students progress they can move from orally blending to silently blending. Encourage students to blend words silently in their head or in a whisper before saying the whole word aloud. This is a transitional step that some students need to go through. Also be aware that some students may spend months blending vocally and practising letter sounds before they can blend reliably on their own, particularly our dyslexic learners.
Johnna Alborn
Deputy Principal/Literacy Facilitator
References:
Effective Instruction in Reading and Spelling; Kevin Wheldall, Robyn Wheldall and Jennifer Buckingham, 2023
LETERS Volume 1; Louisa Moats and Carol A Tolman, 2019
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