Solving Word Divisions with the Open Syllable Principle

When faced with the task of dividing a word, such as "tonic," into syllables, it is important to apply the correct phonics principle to accurately determine the division. In this case, the Open Syllable Principle comes into play when dealing with the word "tonic."

Explanation:

To divide the word "tonic," we would use the c) Open Syllable Principle. An open syllable occurs when a syllable ends with a vowel and that vowel is usually long. In the word 'tonic,' the first syllable 'to' ends with the vowel 'o,' making it an open syllable and giving the vowel a long sound.

Therefore, 'to' is an open syllable, and 'nic' is a closed syllable because it is followed by a consonant. Hence, when dividing the word 'tonic' into syllables, you apply the Open Syllable Principle to the first syllable.