The document discusses proposed changes to the internal assessment (IA) for group 4 subjects beginning in 2014. Key points: 1) The IA will consist of a single open-ended practical investigation or scientific exploration. It can include a wider range of activities than traditional hands-on experiments. 2) The investigation will be presented as a written task and assessed using generic criteria reflecting the learner profile and nature of science theme. 3) The criteria may have different weightings for SL and HL, and moderation will likely be done electronically using e-portfolios.