Ten things I like about the IB Diploma Programme January 30, 2015 in Classroom culture, Creativity, activity, service (CAS), Diploma Programme (DP), IB Global News In 2013, Marissa Jansz made the switch from teaching the IB Diploma Programme (DP) in Singapore to teaching ‘A’ Levels in Sri Lanka. Since then, Marissa has reflected on the two programmes.