The concept that letters are used to represent individual phonemes in the spoken word is the alphabetical principle.
The relationship between the letters with their sounds through which they read and write is alphabetic principle. However, it is an idea for group of letters represents the sound of spoken language. It can be assessed by using standardized measures.
It is so because the alphabetical principle is also known as phonics, as it is based upon/ portrays the relation between the letters and their sounds. To teach letter sounds and how to read the words with the help of its sounds alphabetical principle/method is used.
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