Peter Gates (UK) is an Associate Professor in the Centre for Research in Mathematics Education at the University of Nottingham, where he worked for twenty-five years.

Peter is known internationally for his work on equity, social justice and mathematics education. He established the international research group on Mathematics Education and Society (MES) in 1998. He also served as President of the International Group for the Psychology of Mathematics Education (PME).

Peter began his teaching career in 1976. He taught mathematics in London, Beira and Milton Keynes. Peter has been active in mathematics education research and professional development since 1986. He worked on distance education courses for teachers at the UK Open University where he chaired a course on Developing Mathematical Thinking. Between 1990 and 2004 Peter worked on various courses on initial teacher education and in-service professional development.

Peter's main teaching at the University of Nottingham was in educational research methods, classroom-based inquiry and pedagogy. Peter serves on the editorial board of the international Journal for Mathematics Teacher Education. Peter has supervised almost 20 PhD projects with teachers from various African countries. More recently Peter has developed an interest in visual and spatial approaches to learning and is incorporating this with aspects of equity.

Satsope Maoto (SA) is the current Executive Dean of the Faculty of Humanities, University of Limpopo. She had the opportunity to teach mathematics and mathematics education at all levels of education: she taught primary teachers in the Primary Mathematics Project while teaching at a high school and later at a College of Education. When she joined academia in 2000 she lectured both pre-service and in-service undergraduate and postgraduate courses.

Satsope's teaching experience and her postgraduate studies shaped her research focus on classroom practice, delving into mathematics teaching, learning and assessment. This focus later expanded to include the comprehension of mathematics and mathematics teacher-training from a reform perspective. She is thus best described as a mathematics teacher to the last.

Sophie Marques (SA) is the South African Mathematical Society (SAMS) plenary speaker. Sophie did her PhD in the Algant program between the University of Padova and the University of Bordeaux. After her graduation, she was appointed as Visiting Assistant Professor at the Courant Institute in New York for two years. She stayed two more years as a Clinical Assistant Professor. In 2017 she left the United States and moved to South Africa, the home country of her husband. She did a Postdoc at the University of Cape Town until 2019, when she was appointed as a Senior lecturer at Stellenbosch University, her current position.

Her research area is wide: number theory, algebraic geometry, commutative algebra, non-commutative algebra, linear algebra.

Lindelani Mnguni (SA) is a C2 rated researcher and an Associate Professor for Science Education at the University of South Africa. Previously he was the Chair of the Department of Science & Technology Education at UNISA and a Senior Lecturer at the University of Johannesburg and WITS and a Lecturer at the University of Pretoria. Lindelani was listed in the Top 200 Young South Africans, Mail & Guardian in 2012.

Lindelani's research interests include curriculum and instructional design and development, with specific reference to visuo-semiotic models and reasoning in science education. He has explored strategies for integrating 21st-century technologies, such as animations, simulations and physical models in teaching molecular concepts.

Priscilla Motsoetse (SA) holds a BEd (Hons) degree in Mathematics from the University of Limpopo, an Advanced Certificate in Mathematics Education from the University of South Africa and a Diploma in Education from Modjadji College of Education. Since 2010 she is an FET mathematics teacher and Head of Department at the Makgofe High School in Limpopo. Before that she taught at Mogoto Primary School in the Capricorn district from 2006 to 2010.

At Makgofe High school she received an award as the best Grade 12 mathematics teacher in the Seshego circuit in 2018 and 2019. Priscilla has developed an interest to share her experiences and expertise in mathematics with other teachers. Since joining AMESA in 2010, she has developed an interest in research. In 2019 she co-presented her first research paper at an AMESA Limpopo provincial conference. Priscilla intends to enroll for her Master's degree in Mathematics Education, focusing on the teaching and learning of mathematical functions which seems to be a challenge to most learners in high schools.