Determine the main idea of a text and explain how it is supported by key details; summarize the text. Your students may recognize the words determine, explain, and summarize in this standard, but would they understand and be able to apply these concepts? Students encounter these and other academic vocabulary words throughout their school years, but too often, they don't have a firm grasp of these words' meanings or what skills they require. Enter vocabulary expert Marilee Sprenger, who has curated a list of 25 essential high-frequency words that students must know to be academically successful, especially on standardized tests, and be ready for college and career. In this indispensable guide for all educators, she provides * Pre- and post-assessments to help you evaluate your students' understanding of the essential 25. * A detailed entry for each word, including activities and strategies that will help students internalize the word's meaning and application. * Retrieval games to help students practice the words in fun, engaging ways and reinforce the networks for those words in their brains. * Downloadable blank templates for many of the strategies used throughout the book. Every student needs to know and understand these words to perform at their best. If educators get behind this effort and make the essential 25 part of the fabric of their schools, students will be equipped to thrive in school and beyond.