Many words in the English language are made up of word parts called prefixes, roots, and suffixes. A basic word to which prefixes and suffixes are added is called a root word because it forms the basis of a new word.
◂English Language Arts Worksheets and Study Guides Kindergarten. Word Parts
Students apply knowledge of language structure, language conventions (e.g., spelling and punctuation), media techniques, figurative language, and genre to create, critique, and discuss print and nonprint texts. (NCTE)