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Lecturer empowers students to take control of their studies

22 October 2020 | Story Leonie Bolleurs | Photo Supplied

LiezelNel (1)_read more — Prof Liezel Nel, who received the 2020 Excellence in Learning and Teaching Award in the category Research in Teaching and Learning, says this recognition of her work is undoubtedly an inspiration to continue her research with even more vigour and enthusiasm.

Prof Liezel Nel, Adjunct Professor in the Department of Computer Science and Informatics at the University of the Free State (UFS), was announced as winner in the category Research in Teaching and Learning at the 2020 UFS Excellence in Learning and Teaching Awards, hosted by the Centre for Teaching and Learning in September this year.

Prof Nel, who is passionate about the Computer Science discipline due to its ever-changing nature, says she not only constantly revises the subject material, but also the way in which she presents it to students. “In order to be an effective facilitator, I adjust my teaching and learning strategies based on the needs of my students and their pace and depth of understanding,” she says.

As an adjunct professor, she currently teaches Web Development and Internet Programming modules on both undergraduate and postgraduate level. Prof Nel also supervises master's and PhD projects in the field of Computer Science Education.

She believes in a research-informed way of teaching that is sensitive to the needs of individual students in a diverse educational context. Prof Nel is constantly investigating innovative ways in which the teaching and learning experiences of Computer Science students can be enhanced. “My teaching philosophy is geared towards the empowerment of my students in order for them to take control of their own learning experiences,” she adds.

Best teaching experience

She is in the position of working with students who are entering higher education for the first time and is of the opinion that especially first-year students need to be exposed to the best possible teaching experience.

“My students and I work together to overcome many of the unique challenges they are experiencing in order to better prepare them on an academic and a personal level for the successful completion of their higher education journey and for a successful career in Computer Science,” she says.

Besides the role that Prof Nel is playing in preparing first-year students, she also participates in the development of postgraduate students. “By involving all my postgraduate students in teaching and learning-related projects, I believe that I am playing a valuable role in shaping a new generation of teaching and learning scholars,” declares Prof Nel.

Continuous excellence

Her work to enhance the learning experiences of her students has received both local and national recognition. Since 2009, she has received numerous awards, including the UFS prestige award for Excellence in e-learning, the UFS prestige award for Excellence in Teaching; and the UFS Vice-Chancellor’s award for Scholarship of Teaching and Learning. Prof Nel also received the National Excellence in Teaching and Learning award from the Higher Education Learning and Teaching Association of Southern Africa and the Council for Higher Education (CHE).

News Archive

UFS involved in project to light up the townships

2006-06-06

The parties involved with the project are from the left: Prof Hendrik Swart (Departmental Chairperson of the UFS Department of Physics), Dr Thembela Hillie (CSIR), Prof Neerich Revaprasadu (Department of Chemistry at the University of Zululand) and Dr Wynand Steyn (CSIR).

UFS involved in project that could light up the townships

The University of the Free State’s (UFS) Department of Physics is involved with a project that could make life easier in the townships through the use of artificial light.

“The project is based on the use of sunlight to activate nano material in for example cement and paint during the day. At night the cement or paint can then radiate light,” said Prof Hendrik Swart, Departmental Chairperson of the UFS Department of Physics.

According to Prof Swart an amount of R3,9 million has been made available by the Council for Scientific and Industrial Research (CSIR) for the further development of the project.

Prof Swart visited the University of Florida in America in 1995 for a year where he researched luminescent phosphor material that is suitable for flat panel television screens. The red, green and blue spots on the television screens originate from these kinds of phosphor materials. “At that stage plasma television screens were only a dream. Today it is sold everywhere,” said Prof Swart.

“Upon my return I started a research group at the UFS which investigated the degrading of phosphor material. We also started to concentrate on the effectiveness of nano phosphors. In the mean time our cooperation with the Americans was strengthened with follow-up visits to America of my colleagues, Prof Koos Terblans and Mr Martin Ntwaeaborwa,” said Prof Swart.

“Nano phosphors are basically luminescent powders that consist of particles that are 1 millionth of a millimetre. These particles can provide light as soon as they are illuminated with, for instance, sunlight. The amount of time these particles can provide light, is determined by the impurities in the material,” said Prof Swart.

According to Prof Swart nano particles are developed and linked to infrastructure materials in order for these materials to be excited during the day by sunlight and then it emits light during night time.

“The nano material is of such a nature that it can be mixed with materials, such as paint or cement. The yellow lines of roads can for example emit light in a natural way during night time,” said Prof Swart.

About a year ago Prof Swart and Dr Thembela Hillie, a former Ph D-student of the UFS Department of Physics, had discussions with Prof Neerich Revaprasadu from the University of Zululand and the CSIR about the possibility of mixing these nano phosphor particles with other materials that can be used as light sources in the building of roads and houses.

“Prof Revaprasadu is also actively involved in the research of nano materials. Our efforts resulted in the CSIR approving the further extension of the project,” said Prof Swart.

“The UFS and the University of Zululand are currently busy investigating ways to extend the light emitting time,” said Prof Swart.

“There are eight M Sc and Ph D-students from the UFS and about five students from the University of Zululand working on this research project. The Department of Physics at the Qwaqwa Campus of the UFS, with Francis Dejene as subject head, is also involved with the project,” said Prof Swart.

According to Prof Swart the further applications of nano materials are unlimited. “Children whose parents cannot afford electricity can for instance leave any object such as a lamp, that is covered with these phosphor particles, in the sun during the day and use it at night as a light for study purposes,” said Prof Swart.

According to Prof Swart the further extension of the project will take about two years. “During this time we want to determine how the effectiveness of the phosphors can be increased. Discussions with the government and other role players for the possible implementation of the project are also part of our planning,” said Prof Swart.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
6 June 2006

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