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02 July 2019 | Story Leonie Bolleurs
Edwin Skhosana
Edwin Skhosana is working hard to become a successful and competent actuary one day. With him is his lecturer, Dr Michael von Maltitz.

Edwin Skhosana, an Actuarial Sciences student, was described by his lecturer, Dr Michael von Maltitz of the Department of Mathematical Statistics and Actuarial Science, as ‘very quiet’ in his Causal Inference class. 

This may sound like a compliment, but it’s not.

For Dr Von Maltitz, being quiet is definitely not encouraged – not with the new teaching methods applied in class.

“See, my class is all about engagement – getting the students to watch videos on the topics, read about the methods in question, and then come to class to grill me about things they don’t understand. This change in teaching method is extremely disconcerting for many Mathematical students, who have up until now only been taught in the ‘memorise-regurgitate’ form they had ever since the start of high school,” he explains.

Future success


“My goal is to get the students to a level of understanding where they can sit down with me or with an expert in the field and have a conversation about the Mathematical Statistics topics that I teach. This is a very difficult task in such a technical module, and few students ever feel comfortable enough to engage with me actively in class in this way,” Dr Von Maltitz points out. 

Edwin is working hard towards applying the skills and knowledge he has obtained at university to become a successful and competent actuary one day. 

An important turning point was when it dawned on him how the things discussed in class could find an important practical application in so many fields.  

“This suddenly drove a spontaneous fascination in my mind that led me to engage with Dr Von Maltitz,” the previously quiet Edwin explains.

And everything changed.

Desperate to learn

Dr Von Maltitz explains: “Edwin came to my office to ask some questions. The incredible thing was that he sat down, and a conversation about the Mathematics, the foundations, and the methods just flowed between us. I have seldom had such an insightful chat about my module with a student. It was like a cascade of information just fell into place for Edwin.”

Although he sometimes still experiences his studies as challenging and grapples to adapt to the various styles of lecturing from different lecturers, Edwin now has hope for his class in Causal Inference. 

“I think Dr Von Maltitz’s way of presenting in class is excellent. It is, however, hard to grasp if you are still anchored in the old way of cramming, because he wants you to understand and be able to apply what he teaches,” says Edwin.

“It was just wonderfully refreshing to see someone so desperate to learn something (rather than just wanting to get a degree), and then actually managing to turn around a bad semester mark into such a river of understanding,” Dr Von Maltitz concludes.

Dr Michael von Maltitz
Dr Micheal von Maltitz

News Archive

Chemistry postgraduates tackle crystallography with eminent international researcher
2017-04-04

Description: Dr Alice Brink  Tags: Dr Alice Brink

Department of Chemistry senior lecturer, Dr Alice Brink(left),
hosted outstanding researcher, Prof Elspeth Garman (right)
from the University of Oxford in England to present a
crystallography lecture.
Photo: Rulanzen Martin



“Crystallography forms part of everyday life.” This is according to Prof Elspeth Garman, eminent researcher from the Department of Biochemistry, University of Oxford in England, who was hosted by Dr Alice Brink, Department of Chemistry at the University of the Free State (UFS) Bloemfontein Campus. Prof Garman presented a lecture in the Department of Chemistry, titled ‘104 years of crystallography: What has it taught us and where will it lead’. She also taught the postgraduate students how to refine and mount protein structures in cold cryo conditions at about -173°C.

What is Crystallography?
Crystallography is the scientific technique which allows for the position of atoms to be determined in any matter which is crystalline.
 
“You cannot complete Protein Crystallography without the five key steps, namely obtaining a pure protein, growing the crystal, collecting the data, and finally determining the structure and atomic coordinates,” said Prof Garman. Apart from teaching, she was also here to mentor and have discussions with UFS Prestige Scholars on how to face academic challenges in the professional environment.

Discovery of the first crystal structure of a TB protein

Prof Garman successfully determined the first crystal structure of a Tuberculosis protein (TBNAT), a project that took about 15 years of research. In partnership with the Department of Pharmacology at Oxford University and an outstanding PhD student, Areej Abuhammad, they managed to grow only one TBNAT crystal, one-fiftieth of a millimetre. They also managed to solve the structure and publish it.

Dr Alice Brink, Senior Lecturer in the Department of Chemistry, says, “It’s an incredible privilege to have Prof Garman here and to have her share her wisdom and knowledge so freely with the young academics.”

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