This chapter discusses rules for dividing words into syllables. It explains that a syllable contains one vowel sound and provides five rules: 1) divide between two consonants, 2) divide before a single consonant, 3) divide before consonant + le, 4) divide after prefixes and before suffixes, 5) divide between words in a compound word. Examples are given to illustrate each rule. The chapter reviews that applying these rules involves counting vowel sounds, not letters, as some vowels are silent. Mastering syllable division helps determine the number of syllables in words.