In this video, the teacher explains the importance of using adjectives in writing to create vivid descriptions. They discuss the Royal Order of Adjectives, which guides the order in which adjectives should be used before a noun. The teacher explains the different types of adjectives, such as determiners, observation adjectives, physical description adjectives, origin adjectives, material adjectives, and qualifier adjectives. They also discuss the use of commas with coordinating and non-coordinating adjectives. This video meets Common Core fourth grade language standards.