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29 January 2024 | Story Igno van Niekerk | Photo Igno van Niekerk
Prof Jannie Pretorius
Prof Jannie Pretorius uses an engaging and humorous teaching style that keeps his Life Science and Natural Science students fascinated and engaged.

Once upon a time, there was a monotonous teacher: the students did not like his lectures. Nothing interesting ever happened. The teacher grew old and retired. The end. Or not? According to research, teaching can be a humorous, fun, and enjoyable experience if you do it differently.

Mr Bean videos and Trevor Noah in the class

Prof Jannie Pretorius, a lecturer in the School of Mathematics, Natural Sciences, and Technology, uses an engaging and humorous teaching style that keeps his Life Science and Natural Science students fascinated and engaged. When starting out at the UFS, Prof Jannie wondered about using humour in a “serious tertiary environment.” He soon discovered that students, like most other people, also enjoy appropriate humour.

Using humour in education turned into a research project, and Prof Pretorius found himself showing Mr Bean videos and watching Trevor Noah shows to develop a lesson where the impact of using intentional humour was studied by measuring students’ reactions. An example from the transcription of his class on the mating habits of the praying mantis, where the female often bites the male’s head off to eat him for nourishment, shows how fun can be integrated into learning:

So, it seems that the praying mantis is like – praying; the male is saying: ‘Please don’t eat me, Sylvia, please!’… (laughter) … and she would pray back and say, ‘Please, Ronnie, I can’t resist you.’ (laughter).

Sensitive to their learners’ preferences

Despite the classes being fun, Prof Pretorius also cautions that it is important for teachers to be sensitive to their learners’ preferences and cultural backgrounds when using humour. “There is always an element of risk in the use of humour. As such, humour should always be used in a respectful and inclusive manner to ensure that all learners feel comfortable and included in the classroom.”

Prof Pretorius recognises that the use of humour depends on educators’ personal preferences. Ultimately, it is about what the students learn.

Listen to Prof Jannie Pretorius talk about his research. 

News Archive

It is not every day you get to build a heart
2014-09-17

According to the World Health Organisation, heart disease is the leading cause of death world wide. Heart transplantations substantially outperform any other available treatment and extend life by an average of 15 years, but the shortage of donor organs and organ rejection still remain a challenge.

Getting closer to the day where it will be possible to produce human organs by using human cells, researchers at the University of the Free State (UFS) announced that they have successfully decellularized a primate heart.

Decellularization is the process of taking an organ and stripping its cells, leaving behind a framework of binding tissue. The organ can then be repopulated (recellularized) with the patient's own cells - a process considered to move heart research closer to the day when a patient can become his own donor.

This process was discovered in 2008 by American cardiologist, Dr Doris Taylor of the University of Minnesota, who decellularized and recellularized a beating rat heart in a laboratory.

World wide researchers already used the process of decellularization on rat and pig hearts, but the research team of the UFS is the first to use this on a primate heart.

Complete media release.

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