Do today’s students really know how to work well together? For the first time ever, the Programme for International Student Assessment 2015 (otherwise known as PISA) examined students’ ability to collaborate to solve problems and the necessary social skills involved in that process. Andreas Schleicher, Director of the OECD's Directorate for Education and Skills, and Jeffrey Mo, Analyst for the OECD'S PISA team, discuss the results of the survey and why collaborative problem solving was chosen as a new test criterion.