Mary works at the Centre for Mathematics, Science and Technology Education in Africa (CEMASTEA) where she heads Partnerships and Linkages Programmes. She is a Mathematics Education expert with over fifteen years’ experience. Mary has extensive professional trainings and commands numerous topics to local and international conferences and workshops in areas of mathematics and science education. She is a member of the executive committee to the Strengthening of Mathematics and Science Education in Africa (SMASE-Africa) and a member of the coordinating team on AUC-CESA thematic cluster on Science, Technology, Engineering and Mathematics (STEM) Education in Africa. She is the coordinator of the Inter-Country Quality Node on Mathematics and Science Education (ICQN-MSE) in Kenya.