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15 October 2020 | Story Leonie Bolleurs | Photo Jolandi Griesel
Dr Michael von Maltitz embraces the possibilities that the internet provides for education. He wants his students to be comfortable evaluating and using information from the internet to solve their problems.

“My research in teaching and learning is driven mostly by curiosity – when I feel something is not working in a class, I look for alternatives and I am quick to adopt something new.”

This is how Dr Michael von Maltitz approaches his research. This perspective on things is also what brought him an award from the Centre for Teaching and Learning (CTL) during the Annual UFS Excellence in Learning and Teaching Conference 2020 that was held on 21 and 22 September 2020. 

Dr Von Maltitz, who is Programme Director and Senior Lecturer in the Department of Mathematical Statistics and Actuarial Science, received an Excellence in Learning and Teaching award in the category Technology Enhanced Learning. 

He teaches Causal Inference and Generalised Linear Models for third-year Mathematical Statistics students, and Sampling Distribution Theory for second-year Mathematical Statistics students. 

Follow the lead of practice

Grabbing the attention of the judges, he believes, was his passion for new teaching and learning methods. He is also of the opinion that it is important to embrace the information – the incredible amount of free, valuable content online – that is freely available to staff and students all the time.

“I am passionate about the fact that we need to stop asking our students to write tests when this is not done in that student’s industry. At university, we need to assess knowledge in the same way it is assessed in practice. This ultimately means that information capturing (which is what we expect from students in a textbook-to-test format) should be left to machines and the internet. Critical thinking, knowledge valuation, and self-assessment (i.e. facets of learning how to learn) should be developed while at university.”

“The internet is everywhere now, and we’re fooling ourselves if we think we can teach our students how to navigate their futures without incorporating the internet into our teachings,” he adds.

Dr Von Maltitz embraces the possibilities that the internet provides. “Hopefully, when my students are finished with my modules, they will be more comfortable evaluating and using information from the internet to solve their problems, like I do on a day-to-day basis,” he says. 

Seeking new methods

On receiving this award, Dr Von Maltitz voiced his gratitude for the opportunity to present his ideas and practices; “it suggests that others might find my work useful”.

He says that it helps him feel justified in trying new methods in teaching and learning every year.

Dr Von Maltitz has big plans for the next five years. He wants to make it to Associate Professor, partially on the strength of his teaching and learning portfolio.

“My goal is to ensure that my gradual exploration of my research field in Mathematical Statistics always raises the impact of my modules for my students and improves the quality and quantity of my postgraduate supervision. I also hope that my teaching and learning research will continue to improve my ability to transform my students into life-long learners.”


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Dr Charlotte Boucher and Lindi Heyns examine possible anti-microbial activity in the skin of Western olive toad species
2014-12-22

 

Researchers Lindi Heyns and Dr Charlotte Boucher are working together on an interdisciplinary project between the Departments of Zoology and Entomology and Veterinary Biotechnology at the University of the Free State (UFS). The focus of their research is on the preliminary biochemical description of skin secretions in some South African toads.

The project forms part of an Honours study executed by Dwayne Pike under Heyns’ supervision. He is co-supervised by Dr Boucher who is assisting with the biochemical and microbiological assays.

Dr Boucher said, “Amphibians are characterised by the presence of cutaneous glands spread over the skin. There are two types of glands, namely mucous and granular (poison), located on the inner surface of the epidermis. Mucous glands are widely dispersed over the skin, while granular glands can be grouped and enlarged in specific regions. Mucous glands are generally associated with maintenance of humidity and cutaneous respiration, whereas granular glands function in chemical defence against predators and/or microbial infection. Studies indicate that the compounds produced by the granular glands belong to numerous chemical classes with diverse pharmacological activities.”

The products secreted by granular glands are rich in low molecular weight constituents of varied molecular types, including proteins, peptides and toxins. These secretions make the toad foul-tasting to predators and even toxic to other frog species. In addition, amphibians offer an attractive source of novel antimicrobials. Studies indicate that as a response to inhabiting microorganism-rich environments they synthesise and secrete a diverse array of antimicrobial peptides (AMPs) as an innate form of defence. Extensive research by various other research groups has been carried out on antimicrobial peptides of the genus Rana; however, hardly any studies have investigated the antimicrobial activity of African frog species.

The focus of this preliminary project is to determine the protein composition of the glandular secretions of the Western olive toad (Amietophrynus poweri), using biochemical tests, such as SDS-PAGE also known as protein gel electrophoresis combined with mass-spectrometry used to identify unknown peptides and proteins. This will give us an overview of the composition of the glandular secretions. Furthermore, we are also looking at microbiological tests, which include assays that test for possible anti-microbial activity against various bacterial and fungal species.

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