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In observance of the 2024 holiday season, Sage offices will be closed Monday December 23rd through Wednesday January 1st. Normal operations, including shipping for orders placed during the closure, will resume on Thursday January 2nd. For technical support during this time, please visit our technical support page for assistance options. 

We wish you a wonderful holiday season. Thank you. 

Barnes, Mark D.

Mark D. Barnes

Mark Barnes is a veteran classroom teacher, education consultant, and author of the critically acclaimed Role Reversal: Achieving Uncommonly Excellent Results in the Student-Centered Classroom (ASCD, 2013), The 5-Minute Teacher (ASCD, 2013) and Teaching the iStudent (Corwin, 2014). A longtime adjunct professor at two Ohio colleges, Mark has created five online courses on web-based instruction, mobile learning, and using Twitter in the classroom and as a professional development tool. A leading expert on student-centered learning, Mark has helped thousands of educators build digitally enhanced, project-based, no-grades classrooms. Mark is the creator of the internationally recognized how-to video site for educators, Learn it in 5, and publisher of the popular education blog Brilliant or Insane. Named a Top 10 education technology blog by EdTech Magazine in 2014, B or I inspires hundreds of thousands of loyal readers. Mark’s Facebook group, Teachers Throwing Out Grades, is a growing collection of educators dedicated to changing the way learning is assessed, and this group helped launch the #ThrowOutGrades Challenge. Mark can be found sharing information and articles about best practices in education daily on Twitter at @markbarnes19.


http://www.markbarnes19.com/

http://www.brilliant-insane.com/

https://www.facebook.com/groups/teachersthrowingoutgrades/

View the author's TED talk here: https://www.youtube.com/watch?v=JShsO5PvYG4