avg_rating: 3.96
name: Mark    Barnes
about: Mark Barnes is a longtime educator and founder of Times 10 Publications, providing practical solutions that busy educators can read today and use tomorrow. Mark is the author of eight books, including Hacking Education (Times 10, 2015) and Assessment 3.0 (Corwin, 2015), both of which debuted #1 on Amazon. Mark is regarded as a worldwide leader in the no-grades classroom movement and is the founder of the Teachers Throwing Out Grades Facebook Group.