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13 January 2020 | Story Eugene Seegers | Photo Anja Aucamp
New Way to learn a language
Spearheading the digital expansion of the conversational Sesotho course is IDEAS Lab Director, Johann Möller (middle). With him are from the left: Prof Pule Phindane, CUT; Dr Brenton Fredericks, CUT; Bahedile Letlala, UFS Department of African Languages; and Dr Elias Malete, UFS Department of African Languages.

For many years now, the UFS has been offering a one-year course in conversational Sesotho for staff members; this can then be followed up with the one-year course in advanced conversational Sesotho. The conversational Sesotho for students in the Faculty of Education was introduced in 2018 at the UFS.

The Central University of Technology (CUT) needed a conversational course for its first-year students and approached the Department of African Languages for the development of such a course. Living as we do in a multilingual country; this additional language skill opens doors and often hearts as well.


Using instructional design principles

However, the need was identified by both CUT and UFS to present this crucial information in a way that would be more appealing to digital natives as well as to those less familiar with technology. The Department of African Languages on the UFS Bloemfontein Campus, together with relevant departments from the CUT, approached the IDEAS Lab located on the UFS South Campus, since they already have a reputation for being a specialist on broadcasting and repackaging curricular content for digital presentations. The IDEAS Lab provided technical advice and built the multimedia programme, which will help the user to hear and practice phrases in Sesotho, using instructional design principles. The course will be available to both staff and students belonging to the two universities.

Room for growth

Johann Möller, Director of the IDEAS Lab, says this pilot programme will give both institutions the opportunity to test the use of multimedia for language acquisition. He adds, “Language is extremely complex, and we would like to expand this learning aid in the future.” In fact, the original design has room for growth built into it.

To keep things simple for the user and the building team, it was decided to start out with only four potential everyday scenarios where a staff member would like to speak Sesotho: Firstly, how to greet other persons from different genders; secondly, potential scenarios one might encounter in the university environment itself; thirdly, how to deal with situations at a hospital; and finally, how to use one’s language skills at a filling station.

Pronunciation is key

Each scenario contains three to four conversations that the learner can revise, along with images and audio that illustrate the situation and assist with correct pronunciation. The system does not allow the user to progress unless they have listened to the pronunciations of the sample sentences or phrases.

Further reading material and vocabulary lists are also provided, with the result that people who are using the programme can learn at their own pace. The authoring software Articulate Storyline was used to build the individual scenarios and each conversation or lesson within it. The lessons are also not dependent on an internet connection; they can be downloaded onto a flash memory drive and used offline.

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Well-established root system important for sustainable production in semi-arid grasslands
2015-02-24

Plot layout where production and root studies were done
Photo: Supplied

The importance of a well-established root system for sustainable production in the semi-arid grasslands cannot be over-emphasised.

A study of Prof Hennie Snyman from the Department of Animal and Wildlife and Grassland Sciences at the University of the Free State is of the few studies in which soil-water instead of rainfall has been used to estimate above- and below-ground production of semi-arid grasslands. “In the past, plant ecological studies have concentrated largely on above-ground parts of the grassland ecosystem with less emphasis on root growth. This study is, therefore, one of the few done on root dynamics in drier areas,” said Prof Snyman.

The longevity of grass seeds in the soil seed bank is another aspect that is being investigated at present. This information could provide guidelines in grassland restoration.

“Understanding changes in the hydrological characteristics of grassland ecosystems with degradation is essential when making grassland management decisions in arid and semi-arid areas to ensure sustainable animal production. The impact of grassland degradation on productivity, root production, root/shoot ratios, and water-use efficiency has been quantified for the semi-arid grasslands over the last 35 years. Because of the great impact of sustainable management guidelines on land users, this study will be continuing for many years,” said Prof Snyman.

Water-use efficiency (WUE) is defined as the quantity of above- and/or below-ground plant produced over a given period of time per unit of water evapotranspired. Sampling is done from grassland artificially maintained in three different grassland conditions: good, moderate, and poor.

As much as 86, 89 and 94% of the roots for grasslands in good, moderate and poor conditions respectively occur at a depth of less than 300 mm. Root mass is strongly seasonal with the most active growth taking place during March and April. Root mass appears to be greater than above-ground production for these semi-arid areas, with an increase in roots in relation to above-ground production with grassland degradation. The mean monthly root/shoot ratios for grasslands in good, moderate, and poor conditions are 1.16, 1.11, and 1.37 respectively. Grassland degradation lowered above- and below-ground plant production significantly as well as water-use efficiency. The mean WUE (root production included) was 4.79, 3.54 and 2.47 kg ha -1 mm -1 for grasslands in good, moderate, and poor conditions respectively.

These water-use efficiency observations are among the few that also include root production in their calculations.

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