Rita Bateson was, until very recently, the Curriculum Manager for MYP Mathematics and Sciences at the International Baccalaureate(R) (IB) and continues to be involved in curriculum review. She is an experienced teacher of MYP and DP Mathematics and Sciences, and is Head of Mathematics in her current school. She has taught in many international schools in Europe as well as North America. Her interest include overcoming mathematics anxiety in pupils and STEM education. She is also the author of MYP by Concept 4&5 Mathematics. Irina Amlin is an MYP Mathematics teacher and MYP e-assessment examiner who has taught in Canada, Bermuda, and the United States. She is currently involved in curriculum review with the IB and until her recent relocation, was responsible for the professional development of all mathematics educators in Bermuda.