This is a 3 minute video that explains why the United States needs the Common Core Standards. It is easy to understand and well put together.
http://www.teacherspayteachers.com/Store/Kasha-Mastrodomenico uses the Common Core Standards to write middle school social studies differentiated instruction lesson plans.
Written by,
Kasha Mastrodomenico
www.socialstudiesdifferentiatedinstruction.com
kasha@socialstudiesdifferentiatedinstruction.com
http://www.teacherspayteachers.com/Store/Kasha-Mastrodomenico