“We live in a fast-changing world, and producing more of the same knowledge and skills will not suffice to address the challenges of the future. A generation ago, teachers could expect that what they taught would last their students a lifetime. Today, because of rapid economic and social change, schools have to prepare students for jobs that have not yet been created, technologies that have not yet been invented and problems that we don't yet know will arise.”

(Andreas Schleicher, OECD Education Directorate, "The case for 21st-century learning")

Watch also  “The high cost of low educational performance”, talk by Andreas Schleicher at a Lisbon Council meeting, January 2010