This workbook accompanies the Second Edition of Keys to Teaching Grammar to English Language Learners: A Practical Handbook by Keith S. Folse. The Workbook has been updated to reflect new content in the Second Edition of the Handbook and once again features 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 ESL students 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.