Connect with us

Focus

A New Language Doesn’t Hamper Kids Learning. Other Things Do

Published

on

South Africa is a linguistically and culturally diverse country. There are 11 official languages and several other minority languages. But English continues to be preferred as the language of learning and teaching.

Many South African children are still in the process of learning English by the time they first start going to school. In a single English-medium classroom, one can find children with various levels of English proficiency; from children with English as their mother tongue to children who have never learnt English before.

This situation poses a range of challenges for both the teacher and the children. One of the biggest challenges is that a certain level of proficiency in English is required for the children to be able to perform well academically in an English-medium school. It’s a widely known factthat academic success is very much dependent on language competence and proficiency.

READ MORE | African Curricula That Mean Business

This means that there’s a great need to understand how language develops in children’s early school careers. It is also important to understand the cognitive mechanisms that underlie language learning. To further explore how this happens in the early years of schooling I did a study involving pre-primary children in an English-medium school in Cape Town.

The group consisted of children who were still learning English as well as children whose mother tongue was English. The children were very diverse – there was a total of nine different home languages in the group of children who were still learning English.

The findings showed that the ability of children to develop their language skills didn’t depend on whether they were proficient when they started out. Their ability to learn and advance – or not – was in fact dependent on a range of other factors, none of which had to do with English language proficiency.

The findings

The research aimed to understand the link between language and working memory development. I did this by tracking how working memory developed for the children chosen to take part in the study.

Working memory is the ability to store and use information in the short-term and is important for our everyday lives. For example, we use working memory when we need to remember an address that we just heard while we are looking for a pen to write it down. Working memory also underlies many important academic competencies, like reading and mathematics.

READ MORE | The Robots Are Coming: How To Stay Relevant And Re-Skill Yourself

The children were broken into two groups: those with English as their primary language, and those still learning English. They were given the same tasks; these were an English language assessment and working memory tasks. They were assessed three times over the course of the year – at the beginning, middle and end.

The results showed that both groups improved over the year on the assessment of English language abilities. The results also revealed that great improvements were made in language development during the first year of formal schooling.

Results from the working memory tasks indicated that children who were still learning English, as well as the children who have English as their mother tongue, performed the same on these tasks and achieved comparable scores. Children in both groups saw their language abilities and working memory abilities improve over the year.

The most interesting finding is that the route, or trajectory, the children’s cognitive and language development followed was the same for both groups, regardless of the English abilities they had at the beginning.

Importantly, the result that working memory scores between groups were comparable also indicated that the amount of knowledge of English that a child had didn’t affect their working memory abilities.

READ MORE | 5 Ways Tech Can Revolutionize Education

What this points to is that, if a child’s working memory scores are low and the trajectory of the development is not the same as their peers, there may be cause for concern. In this case, the children should be referred to an occupational or speech therapist for further assessment. Our research shows the fact that they’re struggling can’t simply be explained away as a “symptom” of the child not knowing English well enough.

Falling through the cracks

Studies like these are important for giving professionals better ways of seeing if a child has a disorder or is only struggling because they have not acquired a sufficient level of English yet.

In the context of a classroom with various languages and proficiencies of English, it is easy for a child with a disorder to be overlooked.

Along with the under-resourced schools and over-burdened teachers, heterogeneity among learners results in them not receiving the support that they need, be it academic or linguistic. Those whose primary language is English as well as those learning English suffer alike. The upshot is clearly seen in the worsening educational crisis in South Africa.

Continue Reading
Advertisement
Comments

Focus

A Statement On The Skyline

Published

on

South Africa is on its way to another record with Africa’s tallest building.


A new superstructure is making its mark in Sandton in the heart of Africa’s richest square mile.

The $3 billion project is expected to be completed by the end of 2019 and beat Carlton Centre’s reign as the tallest building in Africa since 1973.

The 223-meter, 50-storey Carlton Centre in Johannesburg has for 46 years stood the test of time as a skyscraper dominating the skyline in South Africa and the continent.

The new building coming up in Sandton will be a 55-storey, 234-meter classical Italian eponym paying homage to Leonardo da Vinci, the Italian artist of the Renaissance era.

READ MORE | Re-constructing Johannesburg The City Of Opportunity

It adds to the luxurious portfolio of hotels by the Legacy Living property group.

As The Leonardo rising from the bedrock and gradually etches its presence on the skyline, Gijs Foden, Director of Retail Management in Legacy Living, says it is a beacon that represents economic growth far beyond the surface.

“From a development perspective, everyone knows about the crisis in construction. There is light at the end of the tunnel, through a tough economy. It is a tough market and we are working our way out of it. We are going up. We are part of the beacon of hope through tough times,” he says.

South Africa has nine out of 20 of the continent’s tallest buildings, amounting to 1,277 meters in total and 5,000 steps up a staircase.

While most of these buildings were erected in the 1900s and early 2000s, records have stayed the same.

Johannesburg’s Ponte City Tower standing as the third tallest building in Africa, coming in after Kenya’s Britam Tower at 200 meters.

The Leonardo was initially set out to be a mixed-use building with 33 floors but has since escalated to dominating the South African skyscraper inventory.

Foden says the development will not only provide investment opportunities for South Africa, but it will celebrate African authenticity.

Set to be completed in the year of Leonardo Da Vinci’s 500th death anniversary, African art will be the center-piece of the tower.

You look out of the window and that is your canvas. Internally, the art in the building is African art.

“We are supporting the African artist, it is what it is. The art defines the building. Keeping the essence of the building and at the same time the warmth and lifestyle will be an attraction, irrespective of the Italian name,” Foden says.

By following due processes in getting the height approved, overtaking Carlton Centre’s record, Foden says: “It [Carlton Centre] is still an icon and no one has been able to beat it. It is different times and it is also different generations. This is our generation which is going to be a timeless building for many years to come. It is an urban flight.”

However, the record by The Leonardo may be short-lived as yet another African skyscraper may overshadow it by the end of 2021.

 The Pinnacle, currently being built in Nairobi’s financial hub, is set to be a 70-storey mixed-use development.

According to a yearly study published by The Council on Tall Buildings and Urban Habitat (CTBUH), Beijing’s China Zun 528-meter skyscraper was the tallest building completed in 2018, making it the eighth-tallest building in the world.

 The study reports that 16 new buildings entered the 100 tallest lists in 2018; up from 14 in 2017, 76% of these were in Asia.

Co-Arc Director, Francois Pienaar, says the influx of skyscrapers in Africa is a way for property investors and developers to exploit the options of sites.

“Sites can become very valuable. There are a lot of things to do with money – [for] better returns for the investment of the land, and that is why people go up. It takes quite a lot of courage, to go 55 floors.

You need to have a client who is inspired to do it. Especially, with the volatility of Africa,” Pienaar says. 

Despite the competition for a piece of the sky, none of the 2019 projected top 30 tallest buildings will supersede the world’s tallest building in Dubai at a towering 829.8 meters with 163 floors above the ground.

The Burj Khalifa has boasted this record since its completion in 2010.

According to Pienaar, the opportunity to build a structure of this magnitude does not come by every day in Africa.

Breaking his 30-storey skyscraping record, Pienaar, who is currently working on The Leonardo, adds:  “It takes a lot more when it comes to delivering services and the kinds of aesthetics that take place.

READ MORE | Richest Cities In The World: The Top 10 Cities With The Most Billionaires

“The building has a skin outside which is imported from Spain. It is a new invention from Spain that reduces the heat load on the glass. We have produced a building that is responsible for the climate. We are trying to keep the building energy-efficient,” he says.

As the global economic outlook develops, there is fierce competition for a piece of the sky.

The taller the building, the more money it pulls in.

As the South African economy picks itself up, the lingering shadow of the Leonardo will represent a symbol of growth and a new dawn.

Continue Reading

Focus

Lab-grown Diamonds: Never Mined, It’s Man-Made

Published

on

Turns out there is literally no difference between lab-grown diamonds and natural diamonds, well, apart from the price.


Ever wondered what the difference between lab-produced diamonds and natural diamonds was? Well, nothing. They are exactly the same.

As with most things of value, a great deal of information has been produced over the years about the price of diamonds. In short, many believe the real price of diamonds is far lower than what ‘big business’ would have us believe and that it is driven up by our insatiable hunger and the social importance we place on the stones.

In line with this, there is a widely-held belief that they are not rare and the market is being deliberately controlled to create the façade that they are difficult to produce. Therefore, their price is dictated by the fact that they symbolize the most enduring of all human emotions – love.

 With that out of the way, in recent times, society has developed a pragmatic relationship with diamonds, rather than a romantic one that has long sustained the industry.

It might be that we live in the era of instant gratification or that we have stopped romanticising the idea of waiting millions of years for the precious stone, but more people have embraced the idea of purchasing lab-grown diamonds.

READ MORE | From Medicine To Nanotechnology: How Gold Quietly Shapes Our World

Unlike an imitation gem like cubic zirconia, it has the same physical characteristics and chemical components as a natural diamond but production time is much shorter, enabling producers to create it in a matter of weeks.

Lab-grown diamonds producer Ross Reid offers FORBES AFRICA a very sobering perspective with the following analogy to describe man-made diamonds.

“If a couple can’t fall pregnant using conventional methods, they do IVF where the baby’s origin of life is manmade. Is that not a real baby when it’s born?”

The room falls silent as all contemplate this question.

“So by that logic, it is a real diamond,” Reid states emphatically.

Reid is the Co-Founder and Managing Director of Inception Diamonds, One of South Africa’s first Diamond companies to offer lab-grown diamonds and fine jewelry.

The world’s leading diamond producer, De Beers, however, has a different perspective.

“We view natural diamonds and lab-grown diamonds as very different products as they have completely different production processes. Natural diamonds are created in the earth, under intense heat and pressure over billions of years. Each diamond is rare, finite and unique,” says Bianca Ruakere, a De Beers Group spokesperson.


De Beers Lightbox range. Picture: De Beers

Reid says he recognizes the market potential for global growth in being able to offer conflict-free, environmentally-friendly lab-grown diamonds, especially to the millennial market.

“With the creation of laboratory-grown diamonds, it allows you to offer the consumer the same thing optically, physically, and chemically at a big discount. So you can have the same beauty, the same hardness, the same look and the same feel for less money,” Reid says.

Large diamond producers have also recognized the same potential.

De Beers Group has been producing synthetic diamonds for industrial purposes for more than 50 years. “Last year, we launched Lightbox in the United States to market a range of fun, fashion jewelry using lab-grown diamonds. They are accessibly priced, and a distinct product offering compared with natural diamonds,” Ruakere says.

 Price is not the only reason that encourages the market to opt for lab-grown diamonds. They are also other ethical factors such as having a guarantee that the rock on your finger is conflict-free.

 Shogan Naidoo, who proposed to his fiancé, Preba Iyavoo, on Valentine’s Day at the popular independent cinema house, The Bioscope, did so with a healthy bank balance and clean conscience.

They were traditionally engaged in July last year, so by the time the ring engagement happened, Iyavoo was caught completely off-guard and was pleasantly surprised.

“Shogan is the most endearing person, but he’s not romantic in the slightest,” says a giddy Iyavoo, who recalls the proposal that happened in a filled theater, with a movie Naidoo had created just for her.

The couple are besotted with their lab-grown diamond. Naidoo says after doing exhaustive research to find the perfect ring to propose with, all conventional options had failed him.

READ MORE | Blood Diamonds To Blockchain Diamonds?

 He says his final ring choice far exceeded his expectations in price and design. Naidoo explains that Iyavoo has a very specific preference and that he was not willing to compromise in getting her the perfect ring but the one he initially wanted was in the range of R80,000 ($5,500).

  “We were planning a wedding and we’d just bought a house,” he says. The exorbitant cost of retail rings led him to search out of the box, and eventually the box returned with the perfect gem.

 The couple who lead a very environmentally-conscious lifestyle, say they are especially proud to be the custodians of this ring because they are guaranteed it’s conflict-free and no miners were exploited.

 Reid says he has to grapple with a great deal of scepticism because many are not ready to fully embrace the idea of lab-grown diamonds despite their advantages.

“The Federal Trade Commission has changed the definition of a diamond. It does not need to come from the ground.

“We have opened up the market for people to be able to afford beautiful pieces without compromising on quality,” Reid says.

Change is inevitable and with that, there will always be those resistant to it. But one thing is for sure, society’s relationship with diamonds are changing.

Continue Reading

Focus

Rwanda’s Gorillas Have Figured Out Where To Find Their Sodium Fix. But It’s Dangerous

Published

on

By

Mountain Gorilla conservation in Rwanda is a great success story. A number of extreme conservation measures – like daily monitoring and protection, veterinary interventions and controlled ecotourism – have enabled the population to bounce back after a precarious low in the 1960s and 1970s that was brought about by habitat destruction and poaching.

But the population remains fragile. Today only around 1,000 mountain gorillas live in two isolated populations: one in the Virunga Volcanoes – straddling the borders of Rwanda, Uganda and DRC – which has increased from 250 to 600 individuals in about 30 years; and a group in the Bwindi National Park in Uganda with about 400 individuals.

The survival of this particular species is important for a number of reasons. Firstly, mountain gorillas are some of our closest living relatives. They can therefore help us understand human evolution and behaviour.

READ MORE | A Solution To Improve Madagascar’s Local Economies

Secondly, they fulfil an important role in maintaining the health of tropical forest ecosystems – for instance by dispersing seeds. And finally, they are a tourist attraction that generates revenue for Rwanda and supports conservation activities throughout the country. In the last two years, tourism has contributed over US$400 million to the national economy.

In Rwanda’s Volcanoes National Park gorillas have been leaving the confines of the protected area to raid crops – like eucalyptus and bamboo – on nearby agricultural plots. Leaving protected areas is a huge risk to their safety.

My colleagues at the Dian Fossey Gorilla Fund’s Karisoke Research Centre and Max Planck Institute and I wanted to understand why the gorillas were ranging outside protected areas into croplands. We foundthat when the gorillas left the national park they often headed straight to eucalyptus trees. Our nutritional analyses showed that eucalyptus are more than a hundred times richer in sodium than the gorillas’ staple foods inside the park.

This led us to conclude that sodium was the main incentive for the gorillas’ escapades. All plants inside the park are low in sodium except a couple of species that grow near the top of the volcanoes.

For the love of sodium

We measured sodium content in samples from 34 of the gorilla’s main dietary items and quantified sodium intake by 22 gorillas in three social groups over one year.

The gorillas obtain up to two thirds of their sodium when consuming eucalyptus.

Sodium is a micro-nutrient that’s critically important for physiological processes, like muscle and nerve function and maintaining fluid levels in various parts of the body.

READ MORE | OPINION | Technology Is Useful, But Drones Alone Won’t Save Africa’s Elephants

Sodium deficiency can affect bones, growth, and reproduction. A sodium deficit can trigger a specific hunger for it which causes animals to go out of their way to obtain it.

This is as true for gorillas as it is for humans.

It’s possible that the gorillas were eating eucalyptus for other reasons. Perhaps for minerals we didn’t investigate – like iodine – or because of the medicinal benefits that it has. But we also found that gorillas often ventured into the region’s colder subalpine or alpine zones where they targeted plants known as giant groundsels and lobelias. These turned out to be rich in sodium as well.

Human-wildlife conflict

Crop raiding is the main source of conflict between people who live in close proximity to the park and wildlife. Farmers generally perceive crop damage by mountain gorillas as a big deterrent to their agricultural development.

The risk is that encounters between gorillas and local people will add to tensions, and lead to local communities being hostile towards wildlife, hampering wildlife conservation efforts.

READ MORE | In Search Of Africa’s Last Eden

Close contact between gorillas and people also increases the risk of disease transmission – such as respiratory diseases and intestinal parasites – which could have a detrimental impact on this highly vulnerable ape population.

To discourage the gorillas from crossing into farmlands near the forest, there may need to be a change in agricultural practices such as relying less on plants sought by gorillas for their nutrients.

An ideal scenario would be to establish a buffer zone containing nutritionally unattractive and unpalatable plants. If sufficiently wide, it would discourage gorillas from crossing into croplands.

-Cyril Grueter; Senior Lecturer, University of Western Australia

-The Conversation

The Conversation

Continue Reading

Trending