Written for teachers who want introductions to conducting school assessments and to studying features of writing, this book is intended (1) to provide ways for teachers to analyze writing samples and the writing process for school or program assessment, and (2) to promote the development of teacher research among kindergarten through grade 12 teachers by providing examples of different ways teachers can study writing in their classrooms. The first chapter presents an overview of procedures in teacher research. The next four chapters introduce various theoretical frameworks within which researchers have been working, with each chapter discussing a different level of analysis--syntax, text, information processing, and social context. The final chapter focuses on errors, teaching practices, and student attitudes toward writing. Appendixes contain information on the results of teacher research, evaluation designs for practitioners, sampling and statistical tests, and using expressive writing to teach biology. (EL)