Donna has used this book (and Arquilevich's more advanced Fairview's Guide to Composition and Essay Writing) for many years with a wide variety of students. She has also exhaustively tested and researched workbooks, texts, guides and programs for writing and can categorically say that this is the best.
Writing for 100 Days is meant to be used by students for a year's worth of work. If you decide to use it with your 7th grader, we strongly recommend that you use it near the end of the year (and only after working with Dorit Winter's The Art and Science of Teaching Composition) and then carry on in eighth grade. Even then - go lightly. Not all children of this age are ready for a focused approach to writing and may need a few more years to gently get their feet before taking a more disciplined and conscious approach to writing. It is very easy to teach a mechanically adept writer to write well.
It could be that during 7th grade the main function this book serves is to help you get your bearing with teaching writing and help you think through your child’s work.
The book covers Composition, Fiction, Poetry and Writing in Action (writing a business letter, speech, newspaper articles and so on). There are excellent exercises to help a student improve his writing and the assignments, though mainly for a group setting, are easily adaptable to the home situation.
Arquilevich's tone is warm, friendly and he never patronizes or dumbs-down his expectations. This is an excellent resource for the end of seventh grade and for 8th grade. High school students needing to brush up on their writing skills are strongly advised to consider purchasing this book.