On this week's episode, Stavros Yiannouka sits down with German statistician, Andreas Schleicher, to discuss PISA, what makes a successful education system, and they get the chance to address some of the criticisms behind standardized tests.

Andreas Schleicher:

Twitter: @SchleicherOECD

Website: http://www.oecd.org/education/

WISE:

Twitter: @WISE_Tweets

YouTube: www.youtube.com/user/WISEQatar

Instagram: www.instagram.com/wiseqatar/

Website: www.wise-qatar.org/