Complex sentence: The goal of the Flat Classroom Project is to create and maintain global collaborative projects and work spaces for K-12 students and educators around the world, bridging students, educators, trainee teachers, and post-secondary education institutions.
Split into simpler sentences: The goal of the Flat Classroom Project is to create global collaborative projects and maintain workspaces for students (at all school levels) and educators around the world. The aim is to provide bridging between students, educators, trainee teachers, and post-secondary education institutions.