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19 November 2024 | Story Pat Lamusse | Photo Supplied
Space and satellites 2024
During the visit to the Naval Hill Planetarium, were from the left, Dr Mart-Mari Duvenhage and Prof Matie Hoffman from the UFS Department of Physics, Consul General Stephanie Bunce and Vanessa Toscano from the US Consulate, and Dinah Mangope from the Department of Physics.

A delegation from the United States (US) Consulate General in Johannesburg, including Consul General Stephanie Bunce and Public Affairs Officer, Vanessa Toscano, visited the Bloemfontein Campus of the University of the Free State (UFS). Consul General Bunce met with the acting Vice-Chancellor and Principal of the UFS, Prof Anthea Rhoda, and the Dean of the Faculty of Natural and Agricultural Sciences, Prof Paul Oberholster. The US delegation also visited the Naval Hill Planetarium.

The UFS recently received a grant from the US Embassy to fund a project to promote science education by highlighting the role of satellites in our lives. Colleagues from the Department of Physics had the opportunity to demonstrate first-hand how the planetarium technology will be used to implement the project, which poses the question – what if something happens in space that interferes with the thousands of satellites we use for communication, weather prediction, navigation, banking … surveillance?

Thanks to this grant, the UFS will explore these questions and contribute to space situational awareness (SSA) and space domain awareness (SDA). SSA involves knowledge about the orbits of spacecraft and space debris. SDA refers to the knowledge and understanding of all activities occurring within the space domain.

There are currently at least 10 000 active satellites in Earth orbit, most of which are in low Earth orbit (LEO). However, in addition to satellites, there are well over 45 000 objects larger than 10 cm in orbit, including more than 35 000 pieces of space debris, such as dead satellites, rocket bodies, and pieces from breakups and collisions. Since 1991, there have been at least six unintentional collisions between active satellites and space debris.

Space turned out to be not as big as once thought, especially not in low Earth orbit (LEO – altitude less than 2 000 km). To make things worse, there are plans to launch up to 100 000 new satellites into LEO over the next decade.

Prof Matie Hoffman from the UFS Department of Physics notes, “We live in an era when the space economy is growing fast and the number of objects in Earth orbit, including satellites and space debris, is increasing rapidly. This poses risks to operational satellites. Recent publicity around Elon Musk’s Starlink satellites has generated additional interest around this topic. It is important to raise awareness of the challenges, which will allow scientists to mitigate them.”

The project will involve expertise in optical satellite observations from the University of Michigan through Prof Patrick Seitzer, international patron of the Friends of Boyden Observatory, and the American Museum of Natural History (AMNH). The grant will fund planetarium upgrades that will enable education on space and satellites, as well as optical satellite observations from Boyden Observatory. Beneficiaries will include learners, higher education institutions (both locally and in the US), and the public. South African project partners will be the South African National Space Agency (SANSA), the Future African Space Explorers’ STEM Academy (FASESA), and satellite-related companies in South Africa.

The Boyden Observatory is ideally situated to provide valuable optical satellite observations in an area of the sky that is not accessible from existing satellite observing facilities, especially for objects in LEO. In fact, the first observation of space debris in geosynchronous orbit was from Boyden Observatory in 1967.

The project will be rolled out from the end of 2024, harnessing facilities at both Boyden Observatory and the Naval Hill Planetarium.

News Archive

Socially inclusive teaching provides solution to Grade 4 literacy challenges
2017-01-23

 Description: Motselisi Malebese Tags: Motselisi Malebese

Mots’elisi Malebese, postdoctoral Fellow of the Faculty
of Education at the University of the Free State (UFS) tackles
Grade 4 literacy challenges.
Photo: Rulanzen Martin

Imagine a teaching approach that inculcates richness of culture and knowledge to individual learners, thus enhancing equity, equality, social justice, freedom, hope and fairness in terms of learning opportunities for all, regardless of learners’ diversity.

This teaching strategy was introduced by Mots’elisi Malebese, postdoctoral Fellow of the Faculty of Education at the University of the Free State (UFS), whose thesis focuses on bringing together different skills, knowledge and expertise in a classroom environment in order to enhance learners’ competence in literacy.

A teaching approach to aid Grade 4 literacy competency
Titled, A Socially Inclusive Teaching Strategy to Respond to Problems of Literacy in a Grade 4 Class, Malebese’s post-doctoral research refers to an approach that improves listening, speaking, reading, writing, technical functioning and critical thinking. Malebese, who obtained her PhD qualification in June this year, says her research confirmed that, currently, Grade 4 is a bottleneck stage, at which learners from a low socio-economic background fall behind in their learning due to the transition from being taught in their home language to English as a medium of instruction.

Malebese, says: “My study, therefore, required practical intervention through participatory action research (PAR) to create conditions that foster space for empowerment.”

PAR indoctrinates a democratic way of living that is equitable, liberating and life-enhancing, by breaking away from traditional teaching methods. It involves forming coalitions with individuals with the least social, cultural and economic power.

Malebese’s thesis was encouraged by previous research that revealed that a lack of readiness for a transitional phase among learners, teachers’ inability to teach literacy efficiently, and poor parental involvement, caused many learners to experience a wide variety of learning barriers.

A co-teaching model was adopted in an effort to create a more socially inclusive classroom. This model involves one teacher providing every learner with the assistance he or she needs to succeed, while another teacher moves around the room and provides assistance to individual learners.

“Learners’ needs are served best by allowing them to demonstrate understanding in a variety of ways, because knowledge is conveyed and accomplished through collaborative work,” Malebese said.

She believes the most important benefit of this model is assuring that learners become teachers of their understanding and experiences through gained knowledge.

Roleplayers get involved using diverse expertise in their field
Teachers, parents and several NGOs played a vital role in Malebese’s study by getting involved in training, sewing and cooking clubs every weekend and during school holidays. English was the medium of teaching and learning in every activity. A lodge, close to the school, offered learners training in mountain biking and hiking. These activities helped learners become tour guides. Storyteller Gcina Mhlophe presented learners with a gift of her latest recorded storytelling CD and books. Every day after school, learners would read, and have drama lessons once a week.

AfriGrow, an organisation that works with communities, the government and the corporate sector to develop sustainable community-driven livelihoods through agricultural and nutrition programmes, provided learners with seedlings, manure and other garden inputs and training on how to start a sustainable food garden. The children were also encouraged to participate in sporting activities like soccer and netball.

“I was aware that I needed a large toolbox of instructional strategies, and had to involve other stakeholders with diverse expertise in their field,” Malebese said.

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