This is a revised edition of the bestselling activities guide for math teachers. Now updated with new math activities for computers and mobile devices - and now organized by the Common Core State Standards - this book includes more than 650 ready-to-use math starter activities that get kids quickly focused and working as soon as they enter the classroom. It is ideally suited for any math curriculum, these high-interest problems spark involvement in the day's lesson, help students build skills, and allow teachers to handle daily management tasks without wasting valuable instructional time. It is a newly updated edition of a bestselling title. It is ideal for math teachers in grades six through twelve.