This individualized inservice packet on vocabulary development in the content areas is intended to enable teachers to help students expand word meaning, using the technical vocabulary of their content areas. It is one of a nine-part series of booklets--Teaching Teen Reading--in self-instructional format intended as a practical resource for teachers desiring condensed, readily usable answers to questions regarding reading instruction. The booklet's four main sections: (1) demonstrate the criteria for selection of vocabulary words; (2) present guidelines for instruction; (3) deal with guides to student independence; and (4) discuss methods of reinforcement. A self-corrective post test, a glossary, and a 21-item bibliography are attached. (SR)