Increasing the signal to noise ratio in a chemistry laboratory. Improving a practical for academic development students
| 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.date.updated | 2016-01-04T08:40:49Z | |
| 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.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.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.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 |
| dc.identifier.uri | http://hdl.handle.net/11427/24095 | |
| 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.language.iso | eng | |
| dc.publisher.department | Department of Chemistry | en_ZA |
| dc.publisher.faculty | Faculty of Science | en_ZA |
| dc.publisher.institution | University of Cape Town | |
| 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 | |
| uct.type.filetype | Text | |
| uct.type.filetype | Image |