If you share my belief that "construct viable arguments and critique the reasoning of others" are perhaps the nine most important words in the Common Core era, then Mathematical Argumentation in Middle School is just what you need. This powerful and practical book takes us through an accessible process of generating cases, making conjectures, and justifying that fully supports bringing SMP #3 to life in our classrooms. -- Steve Leinwand<br />This great resource gives teachers tools to implement the four cycles of mathematical argumentation and help students develop a "variety of expertise," as described in the Standards of Mathematical Practice. As students cycle through the phases, they are guided in building "mathematical authority" as independent thinkers and creators of mathematical ideas. I recommend this book to any teacher who wants to amp up the math discussion in their classroom. -- Annette Hilts<br />Now more than ever, we need to provide all children with opportunities to learn to think critically and participate in thoughtful, productive debate in today's society. This book translates the mathematical practice of argumentation into a four-stage process that can be applied across a wide range of mathematical content. This process utilizes an innovative, research-based approach based on improv games that opens access for all students to participate in the process of mathematical argumentation. Finally, there is a practical guide for making argumentation an everyday practice in mathematics classrooms! -- Kristen Bieda