Perceptions of Students towards the Postgraduate Biology Practical Demonstrators at Sefako Makgatho Health Sciences University, Pretoria, South Africa

Liziwe L. Mugivhisa, Caswell Mavimbela, Joshua O. Olowoyo

Abstract


The present study assessed the experiences of junior students on the ability, performance, and competence of demonstrators or instructors for practical classes in the Biology department. A total of 148 self-administered questionnaires were completed by the junior Biology students in years 1, 2, and 3. The result showed that 52.1% and 62.3% of the participants indicated that the demonstrators had adequate content knowledge of the practical sessions and were helpful during practical sessions respectively. Furthermore, 51.4% agreed that the marking of the practical assessments by the demonstrators was not usually accurate. Most of the respondents stated that the demonstrators were good listeners (77.4%), approachable (71.9%) and 83.0% of the participants did not have any problems with taking instructions from the demonstrators. The majority (69.0%) of the participants wanted the services of the demonstrators to be continued and 36.0% felt that there was a need to increase the number of demonstrators for the practical sessions. Some of the shortcomings of the demonstrators as mentioned by the respondents were the use of cell phones during the practical sessions and that the demonstrators were fond of talking amongst themselves rather than concentrating on the students they were supposed to assist. In general, though the demonstrators were considered to be helpful and that their services should be continued it is however recommended that they should be required to write pre-practical tests before the practical classes to improve their competency in marking and giving accurate answers during the practical classes. 

https://doi.org/10.26803/ijlter.19.7.6


Keywords


Demonstrators; Practical Classes; Laboratory; Postgraduate Students

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References


Basey, J. M., Maines, A. P., & Francis, C. D. (2014). Time efficiency, written feedback, and student achievement in inquiry-oriented Biology labs. International Journal for the Scholarship of Teaching and Learning, 8(2). http://doi.org/10.20429/ijsotl.2014.080215

Bangera, G., & Brownell, S. E. (2014). Course-based undergraduate research experiences can make scientific research more inclusive. CBE-Life Sciences Education, 13(4), 602-606. Retrieved from https://www.lifescied.org/doi/pdf/10.1187/cbe.14-06-0099

Bowling, B., Doyle, M., Taylor, J., & Antes, A. (2015). Professionalizing the role of peer leaders in STEM. Journal of STEM Education: Innovations and Research, 16(2), 30.

Braun, M., & Kirkup, L. (2016). Non-physics peer demonstrators in undergraduate laboratories: a study of students’ perceptions. European Journal of Physics, 37. http://doi.org/10.1088/0143-0807/37/1/015703

Brauna, M., Kirkupabc, L., & Chadwicka, S. (2018). The impact of inquiry orientation and other elements of cultural framework on student engagement in first year laboratory programs. International Journal of Innovation in Science and Mathematics Education, 26(4), 30-48.

Buerkel-Rothfuss, N. L., & Fink, D. S. (1993). Student perceptions of teaching assistants (TAs). Basic Communication Course Annual, 5(8). Retrieved from https://ecommons.udayton.edu/bcca/vol5/iss1/8

Carlson, K., Turvold Celotta, D., Curran, E., Marcus, M., & Loe, M. (2016). Assessing the impact of a multi-disciplinary peer-led-team learning program on undergraduate STEM education. Journal of University Teaching & Learning Practice, 13(1).

Chapin, H. C., Wiggins, B. L., & Martin-Morris, L. E. (2014). Undergraduate science learners show comparable outcomes whether taught by undergraduate or graduate teaching assistants. Research and Teaching, 44(2), 90-99.

Chiu, P. H. P., & Corrigan, A. P. (2019). A study of graduate teaching assistants’ self-efficacy in teaching: Fits and starts in the first Triennium of teaching. Cogent Education, 6:1. https://doi.org/10.1080/2331186X.2019.1579964

DeBeck, G., & Demaree, D. (2012). Teaching assistant-student interactions in a modified SCALE-UP classroom. Paper presented at the 2011 Physics Education Research Conference (1413, pp. 167-170). Omaha, Nebraska, 3-4 August 2011.

Drane, D., Micari, M., & Light, G. (2014): Students as teachers: Effectiveness of a peer-led STEM learning programme over 10 years. Educational research and evaluation - An International Journal on Theory and Practice, 20(3), 210-230. http://doi.org/10.1080/13803611.2014.895388

Durán, C. E. P., Bahena, E. N., Rodríguez, M. de los Ã. G., Baca, G. J., Uresti, A. S., Elizondoâ€Omaña, R. E., & López, S. G. (2012). Nearâ€peer teaching in an anatomy course with a low facultyâ€toâ€student ratio. Anatomy Science Education, 5, 171–176. http://doi.org/10.1002/ase.1269

Felege, C. J. (2018). The long-Term Significance of working as an undergraduate teaching assistant. Theses and Dissertations, 2209. Retrieved from https://commons.und.edu/theses/2209

Fernald, P., Chiseri, M., Lawsom, D., Scroggs, G., & Riddell, J. (1975). Systematic manipulation of student pacing, the perfection requirement, and contact with a teaching assistant in an introductory psychology course. Teaching of Psychology, 2, 147–151. http://doi.org/10.1207/s15328023top0204_1

Filz, T., & Gurung, R. A. R. (2013). Student perceptions of undergraduate teaching assistants. Teaching of Psychology, 40(1), 48-51. http://doi.org/10.1177/0098628312465864

Flaherty, A., O’Dwyer, Mannix-McNamara, P., & Leahy, J. J. (2017). Aligning perceptions of laboratory demonstrators’ responsibilities to inform the design of a laboratory teacher development program. Journal of Chemical Education, 94, 1007-1018. http://doi.org/10.1021/acs.jchemed.7b00210

French, D., & Russell, C. (2002). Do graduate teaching assistants benefit from teaching inquiry-based laboratories? Bioscience, 52(11), 1036–1041. https://doi.org/10.1641/0006-3568(2002)052[1036:DGTABF]2.0.CO;2

Gardner, G. E., & Jones, M. G. (2011). Pedagogical preparation of the science graduate teaching assistant: Challenges and implications. Fall, 20(2).

Graham, M. J., Frederick, J., Byars-Winston, A., Hunter, A.-B., & Handelsman, J. (2013). Increasing persistence of college students in STEM. Science, 341(6153), 1455-1456.

Gudyanga, R., & Jita, L. (2019). Teachers’ implementation of laboratory practicals in the South African physical sciences curriculum. Issues in Educational Research, 29(3).

He, K. D., B S, W. T. L., & Zhang G. A. (2018). Program of medical students as teaching assistants in an Anatomy course: Effectiveness and improvement. Austin Journal of Anatomy, 5(2), 1081.

Hofstein, A., & Lunetta, V. N. (2004). The laboratory in science education: foundations for the twenty-first Century. Science Education, 88(1), 28-54. https://doi.org/10.1002/sce.10106

Kendall, K. D., & Schussler, E. E. (2013). Evolving impressions: Undergraduate perceptions of graduate teaching assistants and faculty members over a semester. Life Sciences, 12, 92-105. https://doi.org/10.1187/cbe.12-07-0110

Kendall, K. D., & Schussler, E. E. (2012). Does instructor type matter? Undergraduate student perception of graduate teaching assistants and professors. CBE-Life Sciences Education, 11(2), 187-199.

Kirkup, L., Varadharajan, M., & Braun, M. (2016). A Comparison of student and demonstrator perceptions of laboratory-based, inquiry-oriented learning experiences. International Journal of Innovation in Science and Mathematics Education, 24(2), 1-13.

Lachman, N., Christensen, K. N., & Pawlina, W., (2013). Anatomy teaching assistants: Facilitating teaching skills for medical students through apprenticeship and mentoring. Medical Teacher, 35, e919-e925. https://doi.org/10.3109/0142159X.2012.714880

Lama, T., & Joullie, J. (2015). Casualization of academics in the Australian higher education: Is teaching quality at risk? Research in Higher Education, 28, 1-11.

Linn, M. C., Palmer, E., Baranger, A., Gerard, E., & Stone, E. (2015). Undergraduate research experiences: Impacts and opportunities. Science, 347. https://doi.org/10.1126/science.1261757.

McKeegan, P. (1998). Using undergraduate teaching assistants in a research methodology course. Teaching of Psychology, 25, 11–14. https://doi.org/10.1207/s15328023top2501_4

Meyer, K. R., & Mao, Y. (2014). Comparing student perceptions of the classroom by U.S. American and International teaching assistants. Higher Learning Research Communication, 4(3), 12-22. https://doi.org/10.18870/hlrc.v4i3.206

Patitsas, E. (2012). A case study of environmental factors influencing teaching assistant job satisfaction. In Proceedings of the ninth annual international conference on International computing education research (ICER '12), (pp. 11-16). Association for Computing Machinery, New York, NY, USA. https://doi.org/10.1145/2361276.2361280

Philipp, S. B., Tretter, T. R., & Rich, C. V. (2016a). Development of undergraduate teaching assistants as effective instructors in STEM courses. Journal of College Science Teaching, 45(3), 74-82.

Philipp, S. B., Tretter, T. R., & Rich, C. V. (2016b). Undergraduate teaching assistant impact on student academic achievement. Electronic Journal of Science Education, 20(2).

Russell, C. B., & Weaver, G. C. (2008). Student perceptions of the purpose and function of the laboratory in science: A grounded theory study. International Journal for the Scholarship of Teaching and Learning, 2(2). http://doi.org/10.20429/ijsotl.2008.020209

Schussler, E. E., Read, Q., Marbach-Ad, G., Miller, K., & Ferzli, M. (2015). Preparing Biology graduate teaching assistants for their roles as instructors: An assessment of institutional approaches. CBE-Life Sciences Education, 21, 14(3). http://doi.org/10.1187/cbe.14-11-0196

Sana, F., Pachai, M. V., & Kim, J. A. (2011). Training undergraduate teaching assistants in a peer mentor course. Transformative dialogues: Teaching & Learning Journal, 4(3).

Spike, B. T. (2014). An investigation of the knowledge, beliefs, and practices of Physics teaching assistants [Graduate Thesis]. University of Colorado.

Spike, B. T. (2016). Design and application of a framework for examining the beliefs and practices of physics teaching assistants. Physical Review Physics Education Research, 12. http://doi.org/10.1103/PhysRevPhysEducRes.12.010114

Tulane, S., & Beckert, T. E. (2011). Perceived utility and knowledge of graduate teaching assistants. Journal of the Scholarship of Teaching and Learning, 11(4), 44 – 55.

Weidert, J. M., Wendorf, A. R., Gurung, R. A., & Filz, T. (2012). A survey of graduate and undergraduate teaching assistants. College teaching, 60(3), 95-103. http://doi.org/10.1080/87567555.2011.637250

Wheeler, L. B., Maeng, J. L., & Whitworth, B. A. (2015). Teaching assistants' perceptions of a training to support an inquiry-based general chemistry laboratory course. Chemistry Education Research and Practice, 16(4), 824-842. http://doi.org/10.1039/c5rp00104h

Wilson, Z. S., Holmes, L., deGravelles, K., Sylvain, M. R., Batiste, L., Johnson, M., McGuire, S. Y., Pang, S. S., & Warner, I. M. (2011). Hierarchical mentoring: A transformative strategy for improving diversity and retention in undergraduate STEM disciplines. Journal of Science Education and Technology, 21, 148–156. http://doi.org/10.1007/s10956-011-9292-5

Wyse, D., Fentiman, A., Sugrue, C., & Moon, S. (2014). English language teaching and whole school professional development in Tanzania. International Journal of Educational Development, 38, 59-68. http://doi.org/10.1016/j.ijedudev.2014.04.002


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