The use of emerging technologies for authentic learning : a South African study in higher education

It is now widely accepted that the transmission of disciplinary knowledge is insufficient to prepare students leaving higher education for the workplace. Authentic learning has been suggested as a way to bring the necessary complexity into learning to deal with challenges in professional practice after graduation. This study investigates how South African higher educators have used emerging technologies to achieve the characteristics of authentic learning. A survey was administered to a population of 265 higher educators in South Africa who self-identified as engaging with emerging technologies. From this survey, a sample of 21 respondents were selected to further investigate their practice through in-depth interviewing using Herrington, Reeves and Oliver’s nine characteristics of authentic learning as a framework. Interrater analysis undertaken by five members of the research team revealed both consistencies and differences among the twenty one cases across the nine elements of authentic learning. The highest levels of authenticity were found for the elements authentic context and task, and the lowest for articulation. Furthermore, there was a moderate correlation identified between levels of authenticity and the role played by emerging technologies in achieving the authenticity, showing a potentially symbiotic relationship between them

The unprecedented coupled ocean-atmosphere summer heatwave in the New Zealand region 2017/18: Drivers, mechanisms and impacts

© 2019 The Author(s). Published by IOP Publishing Ltd. During austral summer (DJF) 2017/18, the New Zealand region experienced an unprecedented coupled ocean-atmosphere heatwave, covering an area of 4 million km2. Regional average air temperature anomalies over land were +2.2 °C, and sea surface temperature anomalies reached +3.7 °C in the eastern Tasman Sea. This paper discusses the event, including atmospheric and oceanic drivers, the role of anthropogenic warming, and terrestrial and marine impacts. The heatwave was associated with very low wind speeds, reducing upper ocean mixing and allowing heat fluxes from the atmosphere to the ocean to cause substantial warming of the stratified surface layers of the Tasman Sea. The event persisted for the entire austral summer resulting in a 3.8 ± 0.6 km3 loss of glacier ice in the Southern Alps (the largest annual loss in records back to 1962), very early Sauvignon Blanc wine-grape maturation in Marlborough, and major species disruption in marine ecosystems. The dominant driver was positive Southern Annular Mode (SAM) conditions, with a smaller contribution from La Niña. The long-term trend towards positive SAM conditions, a result of stratospheric ozone depletion and greenhouse gas increase, is thought to have contributed through association with more frequent anticyclonic 'blocking' conditions in the New Zealand region and a more poleward average latitude for the Southern Ocean storm track. The unprecedented heatwave provides a good analogue for possible mean conditions in the late 21st century. The best match suggests this extreme summer may be typical of average New Zealand summer climate for 2081-2100, under the RCP4.5 or RCP6.0 scenario