This document discusses teaching vocabulary to young learners. It begins by defining vocabulary as the collection of words an individual knows. It notes that vocabulary instruction is receiving more attention now due to research showing its importance in language development. Some basic principles of vocabulary development discussed include emphasizing both direct and indirect teaching, presenting multiple exposures to new words, and having students keep vocabulary notebooks. The document then provides several classroom techniques and activities that can be used to help children develop their vocabularies, such as connecting words to students' lives, using word games, and incorporating dictionaries. It concludes by reiterating the importance of applying principles of vocabulary development and using different techniques to enrich language programs.