The purposes of this bulletin are (1) to help teachers understand that evaluation is an essential part of the total composing process and involves both teacher and student, and (2) to establish evaluative criteria which reflect realistic objectives for the teaching of writing to students of varying abilities and age groups. Charts for both teachers and students show (1) "Developmental Activities" and "Evaluative Functions" for writing and revising, and (2) "Criteria for the Evaluation of a Written Composition." Each of three sections on student writing (one each for intermediate grades, junior high school, and high school) contains (1) a general commentary on the writing program at the particular level, (2) examples of several student compositions marked with corrections and suggestions, (3) analyses of the compositions, pointing out what is considered to be excellent, average, and below-average accomplishment, and (4) paragraph-length comments to the students. A selected bibliography for teaching composition is included. (JS)