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18 January 2023 | Story Leonie Bolleurs | Photo Leonie Bolleurs
At the 31st Annual Conference of SAARMSTE, were from the left: Prof Loyiso Jita, Dean of the UFS Faculty of Education; Prof Dr Susanne Prediger, plenary speaker, Prof Francis Petersen, UFS Rector and Vice-Chancellor; Dr Maria Tsakeni, Head of the UFS Department of Mathematics, Natural Science and Technology Education and Conference Chair; Dr Tulsi Morar, SAARMSTE President; and Prof Mogege Mosimege, Research Chair in Mathematics Education and Director of Initial Teacher Education at the UFS.

The University of the Free State (UFS) hosted the 31st Annual Conference of the Southern African Association for Research in Mathematics, Science and Technology Education (SAARMSTE) on its Bloemfontein Campus from 17 to 19 January 2023.

After two years of hosting the SAARMSTE conference virtually, it was presented as a hybrid conference for the first time. In attendance were delegates from the continent, the USA, India, Australia, and Europe.

The conference theme was: Intersecting Research, Policy and Practice for a Sustainable Praxis in Mathematics, Science and Technology Education: New possibilities and directions for the post-COVID-19 Pandemic Era.

 

Sharing best practices and discussing common challenges

SAARMSTE President, Dr Tulsi Morar from the Nelson Mandela University, believes that the conference provided fertile ground for delegates to share best practices, to discuss common challenges experienced during the pandemic, and to celebrate how these challenges were overcome. "It is only through our reliance and strength that we have succeeded, and because of our experiences, we can grow and innovate to be better prepared for any further challenges," he said.

Opening the event was Prof Francis Petersen, Rector and Vice-Chancellor of the UFS. He said the conference provided meaningful discussions for the challenges the world has to solve, stating that with challenges also come possibilities.

“We live in a time of significant change in the realm of technology, which has an impact on the world of work. Graduates will need to change their thinking in the world of work. They need to understand the future world of work,” Prof Petersen stated.

He also touched on curriculum reform, saying that a critical challenge for South Africa's education system is the decolonisation of the curriculum. What is being taught must make meaningful sense in our context. “The UFS has made significant progress in curriculum transformation since 2016,” he added.

With delegates as well as speakers from other countries present at the conference, Prof Petersen also talked about the UFS’ Global Citizens initiative. He said no country can operate in isolation. We need to learn from each other to move forward as a collective. “It is also vital to deliver global citizens,” he said.

“The importance of the SAARMSTE conference cannot be overemphasised in our current education landscape. We need sustainable relationships to be developed at conferences such as these in order to ask questions, think differently, and renew ourselves,” he concluded, stating that the role of humanities and social sciences in society is critical and that SAARMSTE can add value in this context.

 

Thinking indigenously about Technology education and its implementation

Contributing to robust discussions on Science, Technology, Engineering and Mathematics education, three keynote speakers shared their views during the three-day conference.

Prof Dr Susanne Prediger, Director of the newly established DZLM, the German National Centre for Mathematics Teacher Education, delivered the first keynote address of the conference. She talked about Fostering students’ understanding of procedures and underlying basic concepts: Design research for mathematics classrooms and teacher professional development in the post-pandemic era.

She said that although providing students with rich and deep mathematical learning opportunities is a common request in Mathematics education, many students are still only exposed to superficial learning. According to her, this was aggravated by the school closures during the pandemic and will continue in the post-pandemic era if Mathematics teachers are not sufficiently supported and prepared.

The second plenary was delivered by Prof Mishack T Gumbo from the University of South Africa. He is a Research Professor of Indigenous Technology Knowledge Systems Education in the Department of Science and Technology Education. The title of his talk was: A relook into Technology Education: Raising a transformational issue, where he focused on education, specifically the curriculum of Technology Education as a school subject.

The third plenary was delivered by Dr Gillian Roehrig from the University of Minnesota in the United States. Dr Roehrig is known for her research that explores issues of professional development for K-12 Science teachers, with a focus on the implementation of integrated STEM learning environments and the induction and mentoring of beginning secondary Science teachers.

Her paper, titled The Hows and Whys of Integrated STEM Education, explored the development of a conceptual and curricular framework for integrated STEM, and the benefits of using interdisciplinary approaches to address the policy goals of preparing students as STEM-literate citizens and for the future STEM workforce.

News Archive

Mathematical methods used to detect and classify breast cancer masses
2016-08-10

Description: Breast lesions Tags: Breast lesions

Examples of Acho’s breast mass
segmentation identification

Breast cancer is the leading cause of female mortality in developing countries. According to the World Health Organization (WHO), the low survival rates in developing countries are mainly due to the lack of early detection and adequate diagnosis programs.

Seeing the picture more clearly

Susan Acho from the University of the Free State’s Department of Medical Physics, breast cancer research focuses on using mathematical methods to delineate and classify breast masses. Advancements in medical research have led to remarkable progress in breast cancer detection, however, according to Acho, the methods of diagnosis currently available commercially, lack a detailed finesse in accurately identifying the boundaries of breast mass lesions.

Inspiration drawn from pioneer

Drawing inspiration from the Mammography Computer Aided Diagnosis Development and Implementation (CAADI) project, which was the brainchild Prof William Rae, Head of the department of Medical Physics, Acho’s MMedSc thesis titled ‘Segmentation and Quantitative Characterisation of Breast Masses Imaged using Digital Mammography’ investigates classical segmentation algorithms, texture features and classification of breast masses in mammography. It is a rare research topic in South Africa.

 Characterisation of breast masses, involves delineating and analysing the breast mass region on a mammogram in order to determine its shape, margin and texture composition. Computer-aided diagnosis (CAD) program detects the outline of the mass lesion, and uses this information together with its texture features to determine the clinical traits of the mass. CAD programs mark suspicious areas for second look or areas on a mammogram that the radiologist might have overlooked. It can act as an independent double reader of a mammogram in institutions where there is a shortage of trained mammogram readers. 

Light at the end of the tunnel

Breast cancer is one of the most common malignancies among females in South Africa. “The challenge is being able to apply these mathematical methods in the medical field to help find solutions to specific medical problems, and that’s what I hope my research will do,” she says.

By using mathematics, physics and digital imaging to understand breast masses on mammograms, her research bridges the gap between these fields to provide algorithms which are applicable in medical image interpretation.

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