Why words are important -- The age of common core state standards -- All about words -- Common myths about oral vocabulary development -- Key principles for teaching oral vocabulary development -- Creating a vocabulary-rich environment -- The physical environment -- Enriching the verbal environment -- Summary -- Building children's vocabulary -- The problem -- A content-rich approach to vocabulary instruction -- A teaching sequence -- A self-teaching approach -- Supporting content-rich vocabulary instruction through book reading -- Types of text -- Text sets -- Applying the instructional regime to text sets -- Conclusions -- Grouping for vocabulary instruction -- Organizing vocabulary instruction in the age of common core standards -- Creating a comprehensive vocabulary program -- Conclusions -- How do we know children are learning? -- Assessing vocabulary development -- Assessment activities -- Evidence of children's learning -- Reducing vocabulary disparities through high-quality instruction -- Examples of text sets -- Examples of vocabulary terms children should know, preK-grade 2.