Developed by the Oregon Elementary English Project, this curriculum unit, intended for grades three and four, introduces students to some of the mechanics of writing and provides some practice in using these mechanics. The unit contains an introduction to writing and seven sections, covering beginning and end punctuation, commas, the apostrophe, capital letters, quotation marks, writing letters, and writing paragraphs. Each section is accompanied by a statement of its purpose, suggested procedures and materials, possible extensions, and various student exercises. (See CS 200 482-489 and CS 200 491-499.) (HS)