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06 May 2020 | Story Prof Thidziambi Phendla. | Photo Supplied
Prof Thidziambi Phendla.

Our lives as we know it will never be the same again because of the Covid-19 pandemic. The education system, among other sectors, will be subjected to changes in the provisioning of teaching and learning. 

School disruptions are a familiar phenomenon in both basic and post-school education in South Africa. In recent years, South Africa has seen waves of student boycotts, disruptions, and shutdowns of universities and TVET colleges. Most disruptions lasted for a few days, while some went on for several weeks. One case in particular is that of Vuwani in Limpopo, where more than 50 schools were either vandalised or burned to ashes; nevertheless, the school year was recovered, and learners progressed to the next level. The main difference between the usual disruptions and the current situation lies in the enormity of the shutdown, given that it is clouded at a national level by unpredictable decisions made by the National Committee. 

Shortening school holidays
If the June exams were to be scrapped, the chief challenge would be the lost opportunity to evaluate and assess the extent to which the students have achieved the academic objectives stipulated for the subjects in the curriculum. June examinations for the other grades may not have a serious impact on the learner’s progress to the next class, as other forms of assessment could still be used. However, for matric learners, scrapping the June exams may have a huge effect, since learners require quality assessed examination results to guarantee entrance into higher education institutions.

Shortening of school holidays may not have a huge impact on learners, as this system has been in operation for many years. Many of the best performing schools shorten the school holidays to assist learners in Grades 11 and 12. In many schools, learners continue with normal schooling during the June holidays and rest during the last week of the holiday.  This strategy is already being used by the best performing schools in their quest to support learners to achieve excellent matric results. Depending on the number of days lost during the national lockdown, the option of shortening the June holidays may be the most commendable.

At face value, the strategy to lengthen school days may be the most preferred, as a number of schools in the country are already implementing it at a deeper level. Increasing the number of teaching hours may, however, have an adverse impact on the learners, who may experience enormous mental exhaustion. If the day is lengthened, it is advisable to consider not more than five hours per week.  

Deliver modern and classroom-targeted technologies 
To complement the time recovery mentioned above, there would be a need for a series of changes in some, if not all, the fundamental elements of the effective provision of teaching and learning discussed below. First, change in pedagogical approaches is inevitable. Therefore, classroom teaching will not be the same again. Second, teachers will be compelled to adapt to the use of assessment data in their endeavours to drive teaching and learning. Third, teaching in the 4IR will no longer be negotiable, but will demand advanced skills to deliver modern and classroom-targeted technologies.

Fourth, it will be crucial for teachers to acquire innovative skills to manage students’ undesirable behaviour and conduct. Fifth, immense attention to curriculum mapping, integrated learning, and lesson planning will be required. Last, pastoral care responsibilities that include social and emotional support strategies will help provide the foundation to support teaching and learning. 

In conclusion, the principal elements that make teaching and learning possible and attainable, are the teachers who will be required to learn new skills and approaches to fast-track recovery of learning. If the lockdown is lifted and schools are reopened, the number of learners must be reduced dramatically from the average of 50 to a maximum of 20 learners in a classroom in order to maintain social distancing.

Prof Thidziambi Phendla is currently Manager of Work-Integrated Learning at the University of the Free State. She is the Founder and Director of the Domestic Worker Advocacy Forum (DWAF) and the Study Clinic Surrogate Supervision; and Chair of the Council of the Tshwane North TVET College (ministerial appointment).


News Archive

Carbon dioxide makes for more aromatic decaffeinated coffee
2017-10-27


 Description: Carbon dioxide makes for more aromatic decaffeinated coffee 1b Tags: Carbon dioxide makes for more aromatic decaffeinated coffee 1b 

The Inorganic Group in the Department of Chemistry
at the UFS is systematically researching the utilisation
of carbon dioxide. From the left, are, Dr Ebrahiem Botha,
Postdoctoral Fellow; Mahlomolo Khasemene, MSc student;
Prof André Roodt; Dr Marietjie Schutte-Smith, Senior Lecturer;
and Mokete Motente, MSc student.
Photo: Charl Devenish

Several industries in South Africa are currently producing hundreds of thousands of tons of carbon dioxide a year, which are released directly into the air. A typical family sedan doing around 10 000 km per year, is annually releasing more than one ton of carbon dioxide into the atmosphere.

The Inorganic Chemistry Research Group in the Department of Chemistry at the University of the Free State (UFS), in collaboration with the University of Zurich in Switzerland, has focused in recent years on using carbon dioxide – which is regarded as a harmful and global warming gas – in a meaningful way. 

According to Prof André Roodt, Head of Inorganic Chemistry at the UFS, the Department of Chemistry has for the past five decades been researching natural products that could be extracted from plants. These products are manufactured by plants through photosynthesis, in other words the utilisation of sunlight and carbon dioxide, nitrogen, and other nutrients from the soil.

Caffeine and chlorophyll 
“The Inorganic group is systematically researching the utilisation of carbon dioxide. Carbon dioxide is absorbed by plants through chlorophyll and used to make interesting and valuable compounds and sugars, which in turn could be used for the production of important new medicines,” says Prof Roodt.

Caffeine, a major energy enhancer, is also manufactured through photosynthesis in plants. It is commonly found in tea and coffee, but also (artificially added) in energy drinks. Because caffeine is a stimulant of the central nervous system and reduces fatigue and drowsiness, some people prefer decaffeinated coffee when enjoying this hot drink late at night. 

Removing caffeine from coffee could be expensive and time-consuming, but also environmentally unfriendly, because it involves the use of harmful and flammable liquids. Some of the Inorganic Group’s research focus areas include the use of carbon dioxide for the extraction of compounds, such as caffeine from plants. 

“Therefore, the research could lead to the availability of more decaffeinated coffee products. Although decaffeinated coffee is currently aromatic, we want to investigate further to ensure better quality flavours,” says Prof Roodt.

Another research aspect the team is focusing on is the use of carbon dioxide to extract chlorophyll from plants which have medicinal properties themselves. Chemical suppliers sell chlorophyll at R3 000 a gram. “In the process of investigating chlorophyll, our group discovered simpler techniques to comfortably extract larger quantities from green vegetables and other plants,” says Prof Roodt.

Medicines
In addition, the Inorganic Research Group is also looking to use carbon dioxide as a building block for more valuable compounds. Some of these compounds will be used in the Inorganic Group’s research focus on radiopharmaceutical products for the identification and possibly even the treatment of diseases such as certain cancers, tuberculosis, and malaria.

 

 

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