This workbook accompanies Keys to Teaching Grammar to English Language Learners: A Practical Handbook by Keith S. Folse (ISBN: 978-0-472-03220-4).     The Workbook has exercises that carefully follow the sequence of material in the Handbook. To facilitate use of the Workbook with the Handbook, each exercise is coded with the corresponding pages for the material in the Handbook. Reflecting the different learning styles in any given class, the exercises practice identifying grammatical features in a variety of different ways, including many charts, matching activities, and short answer questions. In addition, the Workbook has a variety of exercises consisting of sentences typical of English language learners so that teachers can become familiar with specific types of errors that ELLs make with certain grammar points.   The Workbook also features some action research projects to guide teachers in collecting small samples of data from their target student populations.