Professor Alexandra holds a PhD in Mathematics Didactics from the University of Beira Interior. She also holds a Master's degree in Mathematics Teaching from the same university. She has a specialisation in Innovation and Creativity – ICT and another in School Administration and Management. She also holds a Certificate in Advanced English (CAE) from the University of Cambridge. She is a researcher at EDUNOVA.ISPA and CICS.NOVA Research Centres, and develops research in the area of Social Sciences with an emphasis on Mathematics Education. She is also a member of SPIEM (Portuguese Society for Research in Mathematics Education) and APM (Association of Mathematics Teachers), and is a member of the same association's GTHMEMat (Working Group on History and Memories in Mathematics Teaching). Professionally, she is a visiting assistant professor at the Faculty of Science and Technology of NOVA University Lisbon. She also belongs to the team that designed the new mathematics programs for secondary school students, which were approved in January 2023, and is currently working to facilitate the implementation of the new curriculum. Since 2007, she has integrated project research teams focused on mathematics learning, curricular innovation, success in school mathematics, and historical studies. In recent years, she has developed research focused on the autonomy of school mathematics, teacher education in the VET education system, the history of mathematics education, and curriculum development. She has written chapters on these issues for research books. She has been a member of the scientific committee for several seminars and congresses, as well as a member of various committees for master’s and doctoral theses. She has published papers in several peer-reviewed journals and congress proceedings, and she has also reviewed several papers. As a mathematics educator, her primary concern is to ensure the effectiveness of mathematical teaching and learning.