Thesis & Dissertations - ތީސީސް އަދި ޑެޒަޓޭޝަން
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Item The development and evaluation of a computer-assisted instructional strategy designed to change student misconceptions about chemical equilibrium(Department of Science Education, Edith Cowan University, 1990-12-14) Hameed, Hassan; ޙަސަން ޙަމީދުThe main aims of this thesis are twofold. First, to identify and describe misconceptions about chemical equilibrium held by Year-12 chemistry students in the Maldives. Second, to investigate the effects of using a computer-assisted instructional strategy in changing those misconceptions. A misconception identification test and an interview schedule developed by Garnett & Hackling ( 1984) were used to diagnose student misconceptions about chemical equilibrium. The remediation aspect of the study used a computer-assisted instruction (CAI) package. The package was designed in accordance with a model of conceptual change proposed by Posner, Strike, Hewson & Gertzog ( 1982) . The CAI package consists of eleven modules. The conceptual change strategies, as implemented in the package, mainly used simulations to create cognitive conflict to assist accommodation. The results of the study indicate that misconceptions about chemical equilibrium are common among Year 12 chemistry students in the Maldives. In addition, these misconceptions were found to be similar to those reported by Hackling and Garnett (1985) which identified misconceptions among Western Australian students. Results also indicate that the remediation aspect of the study, which used the CAI package, produced significant and lasting conceptual changes in students holding the misconceptions.Item Coral reef management in the Maldives, with special reference to reef monitoring: The use of line transect method for monitoring coral reefs in the Maldives.(Centre for Tropical Coastal Management Studies, Department of Marine Sciences and Coastal Management, University of Newcastle upon Tyne, 1993-09-01) Naseer, Abdulla; އަބުދުﷲ ނަސީރުThis study attempts to ascertain aspects of coral reef management in the Maldives, with emphasis laid on reef monitoring. The patterns of exploitation of reefs are described. Threats to reefs, both man-made and natural, are reviewed. The major human impacts on reefs in the Maldives appear to be coral mining, dredging and reclamation, tourist related activities and pollution. Acanthaster plancii predation is a significant threat to coral reefs in some atolls of Maldives. Aspects of coral reef monitoring are reviewed with emphasis on monitoring objectives, design and operation of monitoring programmes, and methods employed in reef monitoring. Transect methods, quadrat methods, photographic methods and visual surveys are reviewed. A monitoring programme developed at the Marine Research Section of the Ministry of Fisheries and Agriculture, in Maldives is described. Data collected under this programme were analysed in chapter 4. This is a long-term monitoring scheme being developed to detect anthropogenic impacts on coral reefs. The problems and short comings of the data as well as their usefulness is discussed. It was concluded that the data collected under the monitoring programme can be put to management use only with further studies and refinements to the sampling procedures.