This handbook is offered to help content area teachers in their efforts to extend the development of writing skills beyond the English classroom and to help students prepare for the New York State Regents Competency Test in Writing. Two sections of the book discuss ways of introducing writing into the content area classroom and responding to student writing. Other sections contain suggested writing activities in the content areas, sample writing lessons in 13 content areas (including accounting, art, foreign language, mathematics, music, science, and vocational education), and training samples and practice lessons for preparing students to take the New York State Regents Competency Test in Writing. (RL)