Designing Open and Distance Learning for Teacher Education in Sub-Saharan Africa: A toolkit for educators and planners

Everyone remembers a good teacher. Good teachers are the key to educational expansion and improvement. In many countries in Sub-Saharan Africa, there is an urgent need to expand the number of primary and secondary teachers. In all African countries, there is an equally important need to improve the quality of teaching. To achieve this, it is clear that new approaches to teacher education are essential. Existing institutions of teacher education will continue to play an important role, but, alone, they will not meet the goals of Education for All (EFA) by 2015. It is fortunate that, just as the twin needs to improve the quantity and quality of teachers become imperative, so new forms of education and training are becoming available. The world is witnessing a revolution in information and communication technologies (ICTs), which can offer training and support of a type and at a cost hitherto impossible to consider, and thus, must be fully explored given the scale and urgency of demand. In doing so, however, it will be necessary to build on existing and well-tested strategies, including the best models of open and distance learning. This toolkit is the third in a series of recent publications by the Africa Region Human Development Department of the World Bank to share knowledge and experience on how distance education and ICTs can support education in Sub-Saharan Africa. It emphasizes the rigorous process by which new forms of distance-education programs for teacher education can be planned and implemented. The best models of established programs are considered along with the potential for incorporating, as the means become available, new modes of communication. Most forms of teacher education, particularly those concerned with qualification upgrading and ongoing professional development, will have to be based in schools. The authors demonstrate how school-based programs, appropriately resourced and supported, have the potential not only to raise significantly the number and quality of teachers, but also to improve classroom practice and school organization, generally. The guidance and advice, which is drawn from many years of experience in design and implementation, and embraces a range of case studies from across the region, will be of considerable value to those preparing new policies and programs of teacher education and to those seeking to improve existing programs

Policy Conflict Management in Distributed SDN Environments

abstract: The ease of programmability in Software-Defined Networking (SDN) makes it a great platform for implementation of various initiatives that involve application deployment, dynamic topology changes, and decentralized network management in a multi-tenant data center environment. However, implementing security solutions in such an environment is fraught with policy conflicts and consistency issues with the hardness of this problem being affected by the distribution scheme for the SDN controllers. In this dissertation, a formalism for flow rule conflicts in SDN environments is introduced. This formalism is realized in Brew, a security policy analysis framework implemented on an OpenDaylight SDN controller. Brew has comprehensive conflict detection and resolution modules to ensure that no two flow rules in a distributed SDN-based cloud environment have conflicts at any layer; thereby assuring consistent conflict-free security policy implementation and preventing information leakage. Techniques for global prioritization of flow rules in a decentralized environment are presented, using which all SDN flow rule conflicts are recognized and classified. Strategies for unassisted resolution of these conflicts are also detailed. Alternately, if administrator input is desired to resolve conflicts, a novel visualization scheme is implemented to help the administrators view the conflicts in an aesthetic manner. The correctness, feasibility and scalability of the Brew proof-of-concept prototype is demonstrated. Flow rule conflict avoidance using a buddy address space management technique is studied as an alternate to conflict detection and resolution in highly dynamic cloud systems attempting to implement an SDN-based Moving Target Defense (MTD) countermeasures.Dissertation/ThesisDoctoral Dissertation Computer Science 201

The maturing of the MOOC: literature review of massive open online courses and other forms of online distance learning

This survey of Massive Open Online Courses (MOOCs) and Online Distance Learning (ODL) literature aims to capture the state of knowledge and opinion about MOOCs and ODL, how they are evolving, and to identify issues that are important, whether consensual or controversial. Abstract: This report updates our knowledge on the development and impact of massive open online courses on learners and institutions at further education and higher education level. The study assessed available literature from various sources, including academic research articles and formal comprehensive reviews; blog posts; commentary and journalistic coverage. It concludes that massive open online courses are likely to become a standard element of university education with new teaching and learning methods that provide revenue and lower costs. A major challenge is finding suitable business models

Network service orchestration standardization:a technology survey

Network services underpin operator revenues, and value-added services provide income beyond core (voice and data) infrastructure capability. Today, operators face multiple challenges: a need to innovate and offer a wider choice of value-added services, whilst increasing network scale, bandwidth and flexibility. They must also reduce operational costs, and deploy services far faster - in minutes rather than days or weeks. In the recent years, the network community, motivated by the aforementioned challenges, has developed production network architectures and seeded technologies, like Software Defined Networking, Application-based Network Operations and Network Function Virtualization. These technologies enhance the highly desired properties for elasticity, agility and cost-effectiveness in the operator environment. A key requirement to fully exploit the benefits of these new architectures and technologies is a fundamental shift in management and control of resources, and the ability to orchestrate the network infrastructure: coordinate the instantiation of high-level network services across different technological domains and automate service deployment and re-optimization. This paper surveys existing standardization efforts for the orchestration - automation, coordination, and management - of complex set of network and function resources (both physical and virtual), and highlights the various enabling technologies, strengths and weaknesses, adoption challenges for operators, and areas where further research is required

Accessing learner support services in a distance education context at UNISA Adult Basic Education Department

This study investigated the access to learner support services by Unisa‟s ABET students in the Department of Adult Education in one of the rural provinces in South Africa. Specifically, a survey using questionnaire and focus group interview was carried out to determine the access gaps in to the learner support services by Unisa‟s adult students. A literature study preceded the empirical study to fully comprehend the theoretical and conceptual underpinnings of the role of learner support in bridging the transactional distance between students on the one hand and the institution on the other hand. In the empirical study phase, a questionnaire was administered to 150 ABET Students in one province in South Africa through the stratified sampling technique and one focus group interview comprising 10 students who access support services at one of the regional offices to assess the importance they attach to the support services that are offered at the regional centres and the extent to which they are able to access them. The focus group interview comprised questions on the students‟ understanding of learner support services and their experiences in accessing them. Moore‟s theory of transactional distance was used as the theoretical base for the study. Out of a total of the 150 questionnaires that were distributed, 117 were the usable representing 78.0% response rate. One of the conclusions drawn from this study is that, although Unisa has most of the learner support services in place but for various reasons, a lot of the students are not able to access the support services as expected as the needs gap for almost all the support services were high. The chi-square tests found significant differences (p is less than 0.05) between the students on the extent to which they are able to access the support services. An integrated learner support framework was suggested for Unisa and other distance providing institutions to address the access gaps adult students‟ encounter in their studies

E-learning for knowledge management in technical vocational education and training colleges

In TVET colleges, the traditional face-to-face mode of knowledge delivery appears to be the norm. Knowledge is often shared in a teaching space during a particular period of time. Students and a lecturer need to be in a specified venue during an allocated time slot for the learning process to take place which includes obtaining knowledge from the lecturer, sharing views and storing knowledge in their minds. There is often no interaction with the lecturer beyond the classroom. As such, learners with learning difficulties have no alternative platform into which they can get support; which compromises the quality of education and students’ success rate. The use of e-learning permits students to finalise a course in their own time and at their own location. It also implies that students are at an advantage as they do not need to go to a particular learning institution, and they can proceed with the training at their own pace. This research investigated how e-learning may be used as an enabler of learning by overcoming barriers associated with face-to-face learning. This was achieved through the development of a proposed e-learning framework based on the existing literature. The proposed framework was then tested through a survey distributed among TVET stakeholders to offer an improved framework. Furthermore, the improved framework was used to develop an e-learning architecture and prototype which can help guide institutions who wish to adopt e-learning.Information TechnologyM. Tech. (Information Technology

Accessing learner support services in a distance education context at UNISA Adult Basic Education Department

This study investigated the access to learner support services by Unisa‟s ABET students in the Department of Adult Education in one of the rural provinces in South Africa. Specifically, a survey using questionnaire and focus group interview was carried out to determine the access gaps in to the learner support services by Unisa‟s adult students. A literature study preceded the empirical study to fully comprehend the theoretical and conceptual underpinnings of the role of learner support in bridging the transactional distance between students on the one hand and the institution on the other hand. In the empirical study phase, a questionnaire was administered to 150 ABET Students in one province in South Africa through the stratified sampling technique and one focus group interview comprising 10 students who access support services at one of the regional offices to assess the importance they attach to the support services that are offered at the regional centres and the extent to which they are able to access them. The focus group interview comprised questions on the students‟ understanding of learner support services and their experiences in accessing them. Moore‟s theory of transactional distance was used as the theoretical base for the study. Out of a total of the 150 questionnaires that were distributed, 117 were the usable representing 78.0% response rate. One of the conclusions drawn from this study is that, although Unisa has most of the learner support services in place but for various reasons, a lot of the students are not able to access the support services as expected as the needs gap for almost all the support services were high. The chi-square tests found significant differences (p is less than 0.05) between the students on the extent to which they are able to access the support services. An integrated learner support framework was suggested for Unisa and other distance providing institutions to address the access gaps adult students‟ encounter in their studies

Positive work and organisational psychological functioning of academics in the open distance learning work environment

The research was conducted from the perspective of a positive psychological paradigm and investigated the interrelationship dynamics between the psychological constructs of resistance to change, work engagement and psychological capital which have been under-researched in the rapidly changing open distance learning work environment of academics. A quantitative survey was conducted on a probability sample of 423 (N=423) academics at a South African open distance learning higher education institution. Confirmatory- and exploratory factor analysis, in the absence of goodness of fit, revealed a four-construct measurement model for resistance to change, a two-factor measurement model for work engagement and a four-construct measurement model for psychological capital. A correlational analysis revealed significant relationships between resistance to change, work engagement and psychological capital and structural equation modelling indicated an adequate fit of the conceptual structural model. Tests for statistically significant mean differences revealed no differences between male and female academics, or between the educational levels of groups of academics, with regard to levels of resistance to change, work engagement and psychological capital. At a theoretical level, the research provided insight into the different concepts and theoretical models that lead to the development of positive psychological functioning, such as understanding of the notion of resistance to change in the work environment. At an empirical level, the new knowledge and insights derived from the results may add to a broader perspective on interrelationships between the psychological behavioural constructs of resistance to change, work engagement and psychological capital. This research has also added to the body of knowledge on how academics’ positive psychological behaviour can contribute to a positive organisation as well as to individual well-being in a changing open distance learning work environment.Industrial and Organisational PsychologyD. Com. (Industrial and Organisational Psychology