The Common Ground Collaborative (CGC) is a global network of innovators, educators and partners who share common principles. #theCGC #learningthatmatters The Common Ground Collaborative (CGC) is a non-profit, global community of sense-makers, innovators, The mission is to develop independent learners and contributing global citizens through the development and promotion of an innovative learning ecosystem, including an articulated learning framework, based on US and international curriculum standards, that explores the human common ground to engage learner.