Which method involves creating new words by adding a phoneme to an existing word?

The method of creating new words by adding a phoneme to an existing word is known as phoneme addition. This process involves taking an existing word and modifying it by inserting an extra sound, which can lead to the formation of a new word. For example, if you take the word "at" and add the phoneme /s/ at the beginning, you create the new word "sat." This technique is an important part of phonological awareness, as it helps students understand how sounds function within words and how they can manipulate sounds to create new meanings.

In contrast, other methods listed serve different purposes within phonological awareness. Phoneme deletion involves removing a phoneme from a word, phoneme categorization relates to identifying which words share the same phoneme, and phoneme substitution entails replacing one phoneme in a word with another to create a different word. Each of these methods plays a role in developing a foundation for reading and writing skills, but phoneme addition specifically describes the action of creating new words through the addition of sounds.