Use writing as a tool for helping students master content! This updated edition of a best-selling book offers explicit strategies for differentiating writing instruction to help students learn content and develop as writers. The authors address how to create a climate for writing, use flexible groupings, differentiate instruction, and assess student writing. Offering new strategies and activities for effective writing instruction, this second edition: Covers informational text writing and critical thinking skills Includes guidance for working with English language learners Discusses current research about writing and learning Offers expanded coverage of assessment methods and tools