Increasing the signal to noise ratio in a chemistry laboratory. Improving a practical for academic development students

 

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dc.contributor.author Davidowitz, Bette
dc.contributor.author Rollnick, Marissa
dc.contributor.author Fakudze, Cynthia
dc.date.accessioned 2017-03-27T07:35:52Z
dc.date.available 2017-03-27T07:35:52Z
dc.date.issued 2003
dc.identifier.citation Davidowitz, B., Rollnick, M., & Fakudze, C. (2003). Increasing the Signal to Noise Ratio in a Chemistry Laboratory–Improving a Practical for Academic Development Students. S. Afr. J. Chem, 56, 47-53.
dc.identifier.uri http://hdl.handle.net/11427/24095
dc.description.abstract In practical sessions students lack sufficient time or opportunity for deep processing of information. If the signal to noise ratio is too low, it can obscure the ‘chemical message’ which the lecturer is trying to convey. This study reports on an action research driven attempt to improve on a Hess’s Law experiment, well known in most first year curricula. Data collected in 2000 indicated that students struggled primarily because there were too many practical demands to allow them to focus on the concepts involved. The exercise was thus divided into two sessions in 2001, the first to address the issues related to techniques required, the second, similar to the experiment in 2000. Analysis of data collected in 2001 shows that the changes made a significant impact on the effectiveness of the laboratory session.
dc.language.iso eng
dc.source South African Journal of Chemistry
dc.source.uri http://journals.co.za/content/journal/chem
dc.subject.other Chemical education
dc.subject.other Action research
dc.subject.other Curriculum design
dc.subject.other Laboratory exercises
dc.title Increasing the signal to noise ratio in a chemistry laboratory. Improving a practical for academic development students
dc.type Journal Article
dc.date.updated 2016-01-04T08:40:49Z
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Chemistry en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Davidowitz, B., Rollnick, M., & Fakudze, C. (2003). Increasing the signal to noise ratio in a chemistry laboratory. Improving a practical for academic development students. <i>South African Journal of Chemistry</i>, http://hdl.handle.net/11427/24095 en_ZA
dc.identifier.chicagocitation Davidowitz, Bette, Marissa Rollnick, and Cynthia Fakudze "Increasing the signal to noise ratio in a chemistry laboratory. Improving a practical for academic development students." <i>South African Journal of Chemistry</i> (2003) http://hdl.handle.net/11427/24095 en_ZA
dc.identifier.vancouvercitation Davidowitz B, Rollnick M, Fakudze C. Increasing the signal to noise ratio in a chemistry laboratory. Improving a practical for academic development students. South African Journal of Chemistry. 2003; http://hdl.handle.net/11427/24095. en_ZA
dc.identifier.ris TY - AU - Davidowitz, Bette AU - Rollnick, Marissa AU - Fakudze, Cynthia AB - In practical sessions students lack sufficient time or opportunity for deep processing of information. If the signal to noise ratio is too low, it can obscure the ‘chemical message’ which the lecturer is trying to convey. This study reports on an action research driven attempt to improve on a Hess’s Law experiment, well known in most first year curricula. Data collected in 2000 indicated that students struggled primarily because there were too many practical demands to allow them to focus on the concepts involved. The exercise was thus divided into two sessions in 2001, the first to address the issues related to techniques required, the second, similar to the experiment in 2000. Analysis of data collected in 2001 shows that the changes made a significant impact on the effectiveness of the laboratory session. DA - 2003 DB - OpenUCT DP - University of Cape Town J1 - South African Journal of Chemistry LK - https://open.uct.ac.za PB - University of Cape Town PY - 2003 T1 - Increasing the signal to noise ratio in a chemistry laboratory. Improving a practical for academic development students TI - Increasing the signal to noise ratio in a chemistry laboratory. Improving a practical for academic development students UR - http://hdl.handle.net/11427/24095 ER - en_ZA


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