This document defines syllables and discusses their structure. It notes that a syllable contains a nucleus which is usually a vowel or diphthong. Syllables can also have an onset of initial consonants and a coda of final consonants. It provides examples of different syllable types such as open, closed, and consonant-cluster syllables. Students are asked to practice drawing syllable tree diagrams to represent the onset, nucleus, and coda of both monosyllabic and multisyllabic words. Homework involves drawing diagrams for additional words.