This document discusses strategies for understanding unfamiliar words when reading. It defines context clues as words or sentences before or after an unfamiliar word that provide hints to the word's meaning. Several types of context clues are described, including definition, synonym, antonym, example, comparison, and cause and effect. Examples are provided for each type. Readers are instructed to identify the unfamiliar word and context clue type when analyzing sample sentences. Key terms are defined, such as callous and idyllic. Activities are included for readers to practice identifying unfamiliar words and determining the context clue being used.