This document discusses how children learn the meaning of words in three stages. The first stage is labeling, where children learn that sounds can be names for things. The second stage is packaging, where children learn which words can be grouped together. The third stage is network building, where children learn how words relate to each other, such as family relationships. It also describes techniques teachers can use to introduce new vocabulary to children, such as using objects, pictures, gestures, and technology. Activities like sorting, giving instructions, and games help children practice and memorize new words. Ongoing review through making vocabulary books and word webs helps children consolidate and organize what they've learned.