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Over the last few years, topics related to sustainable development and energy saving in Western countries led to several research projects aiming to promote the amount of natural daylight used in school buildings. The same issues arise now in Libya, especially those concerning the use of natural daylight. The promotion of natural daylight in the classrooms saves electrical energy and improves the working conditions for both teachers and students. The extreme solar heat in Libya has always been an imperative factor in relation to building heat. Especially during the period from June to August great care is given to avoid overheating while still preserving the use of natural daylight. The present research aims to propose and to test several architectural devices that can be integrated into educational building designs, allowing the penetration of natural daylight while respecting the traditional aestheticism and creating a comfortable school environment. Keywords: Classrooms, Natural daylight, Visual comfort, Sustainable visual environments, Sustainability, 1. Introduction Student's learning capacity and performance, such as the ability to concentrate during the lessons, do not only depend on individual characteristics, such as motivation, psychological conditions, intelligence, etc. [...]

This research investigated Education for Sustainability (EfS) at an independent Montessori primary school, located in the Perth metropolitan area of Western Australia. A longitudinal case study involving analysis of data from a 20-year period was conducted to determine the effectiveness of EfS. Historical information about EfS at the school from 1990 to 2005 was examined, with the main focus of the study being on the impact of the Australian Sustainable Schools Initiative (AuSSI) between 2005 and 2009. AuSSI promotes a whole school, whole systems thinking approach to EfS. Three school-based issues in EfS were studied. First, the research aimed to determine what elements of EfS were in operation in the school prior to involvement in AuSSI. Second, student outcomes including engagement with whole systems thinking, attitudes and values, knowledge and understandings, and skills and behaviours related to EfS, were investigated during the first 5 years of participation in AuSSI. Third, teacher perceptions of the EfS program, including engagement with whole systems thinking, were examined during this same time period. A case study approach was employed to enable in-depth investigation of EfS in the life of the school prior to, during and post implementation of AuSSI. This approach facilitated revelation of participants' lived experiences, their perceptions and understandings of EfS, as well as detailed information about student outcomes in EfS. Case study methodology was also compatible with the culture and processes of the participating school and provided an opportunity for utilising a whole systems thinking approach. Data was gathered from a range of sources, through surveys, interviews, observation and document analysis over a 5-year period. The total participants included 11 teachers and 75 students. The research identified particular antecedents of EfS in the Montessori method of education that existed in the school prior to AuSSI, including the whole child approach, together with the Montessori learning environment, curriculum and values. Following participation in AuSSI, student attitudes and values, knowledge and understandings, and skills and behaviours related to EfS were enhanced for all year levels. However, after 3 years, when specific EfS actions and projects ceased, student EfS outcomes were limited. Furthermore, students' thinking and behaviour indicated a 'silo', rather than whole systems thinking approach to EfS. Teachers perceived the EfS program as highly effective in the initial 3 years after joining AuSSI. Key elements that enhanced EfS included EfS staff champions who had access to EfS networks, leadership support, and active school community involvement in all EfS processes. However, after 3 years of being an AuSSI school, the culmination of reduced leadership support for EfS, lack of staff training, vague designation of staff with EfS responsibilities and inadequate community involvement, resulted in cessation of the EfS program. Teacher perceptions on whole systems thinking revealed alignment between Montessori philosophy, EfS and whole system thinking was more in theory than in practice. Through an in-depth longitudinal case study of a school this research highlighted the importance of whole school EfS professional learning, embedding EfS and whole systems thinking across the curriculum at all year levels, whole school support, and the usefulness of a sustainability continuum that recognises the complex, dynamic interplay of issues involved in a school's EfS journey. It is strongly recommended that improvements to pre-service teacher education in EfS are implemented, and a review of the AuSSI toolkit is conducted to refine EfS evaluation processes and to target the specific EfS needs of teachers at different stages of schooling, as well as to enhance understanding and implementation of the whole systems thinking approach. Finally, EfS professional learning for all school staff in all schools is warranted to enhance depth of EfS engagement., doi10.1017/aee.2013.8 Key Publications Generated The following refereed publications have resulted from the research described in this dissertation: Lewis, E., Nielsen, L., Pearson, J., & Baudains, C.M. (2012). Turtle watch: Enhancing [...]