Compu-IQ Phonics Software
Coded Phonics History
- A phonetic language is one where one letter is represented by one sound and one sound is spelled by one letter.
- That is why English is NOT a phonetic language.
- In order to spell these 42 sounds with a 26-letter alphabet, many individual letters represent more than one sound.
Phonetic Vowels
- The following group of words illustrates the point that one letter often represents more than one sound. The letter “a” can have the following nine vowel sounds in English:
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- In addition, one sound can often be spelled in different ways e.g.
the vowel sound “ay” (long vowel sound of “a”) can be spelled as:


Phonetic Consonants
- The consonants of English are more phonetic than the vowels.
However, there are some consonants that have more than one sound e.g.


- Consonants also, but to a lesser degree, form letter groups that represent more than one sound. For example “ch” in chance, chaos, chef and choir has four different sounds.

EDUSS Phonic code
- The EDUSS Coded system simplifies English, making it into a phonetic language by using a special colour-coding system, which accelerates the learning process.
- Vowels are coded red and given a unique numerical superscript that identifies their sound.
- Consonants are coded blue and given a blue phonetic letter superscript when they are not phonetic.
- Silent letters are coded grey as in judge.


| Step-by-step lessons | Interactive exercises | Articulating Sounds |
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Stage 1 13 Lessons;
- Introduces the student to 10 commonly used vowel sounds (the short and long sounds of each of “a”, “e”, “i”, “o”, “u”);
- Introduces the student to the 2 vowel sounds of “y” e.g. cry and baby;
- Introduces the student to 22 consonant sounds.
Another 13 Lessons;
- Introduces the student to another 13 vowel sounds and their most common spellings;
- Introduces the student to six more consonant sounds and some common special sounds of English;
- Introduces the student to the consonant digraphs;
- Introduces the student to the consonant blends.
- Voiced consonant sounds
- Unvoiced consonant sounds
- Nasal consonant sounds
- Hard and soft consonant sounds
- Consonant digraphs
- Consonant blends
- Silent consonants
- Paired voiced and unvoiced consonants






