Learning new words is foundational to success in school and life. Researchers have known for years that how many word meanings a student knows is one of the strongest predictors of how well that student will understand text and be able to communicate through writing. This book is about how children learn the meanings of new words (and the concepts they convey) and how teachers can be strategic in deciding which words to teach, how to teach them, and which words not to teach at all. This book offers a comprehensive approach to vocabulary instruction. It offers not just practical classroom activities for teaching words (though plenty of those are included), but ways that teachers can make the entire curriculum more effective at promoting students' vocabulary growth. It covers the 'why to' and 'when to' as well as the 'how to' of teaching word meanings. * Activities for teaching different kinds of words such as high frequency words, high utility words, and new concepts, are explained and illustrated. A chart provides a simple framework built around seven basic categories of words that helps teachers decide which words to teach and how to teach them. Strategies are offered that will help students use context, word parts, and dictionaries more effectively. Although specific vocabulary instruction is fully covered, the primary goal of this book is to develop students' independent interest in words and their motivation to learn them. Teachers are encouraged to improve the reading vocabularies of their students by looking for opportunities to integrate vocabulary learning into activities that are undertaken for other purposes.