Ongoing Project-based learning in different modalities of the introductory biology course during the pandemic

Author(s):  
Min Zhong
2014 ◽  
Vol 13 (2) ◽  
pp. 311-321 ◽  
Author(s):  
Michelle Mynlieff ◽  
Anita L. Manogaran ◽  
Martin St. Maurice ◽  
Thomas J. Eddinger

Writing assignments, including note taking and written recall, should enhance retention of knowledge, whereas analytical writing tasks with metacognitive aspects should enhance higher-order thinking. In this study, we assessed how certain writing-intensive “interventions,” such as written exam corrections and peer-reviewed writing assignments using Calibrated Peer Review and including a metacognitive component, improve student learning. We designed and tested the possible benefits of these approaches using control and experimental variables across and between our three-section introductory biology course. Based on assessment, students who corrected exam questions showed significant improvement on postexam assessment compared with their nonparticipating peers. Differences were also observed between students participating in written and discussion-based exercises. Students with low ACT scores benefited equally from written and discussion-based exam corrections, whereas students with midrange to high ACT scores benefited more from written than discussion-based exam corrections. Students scored higher on topics learned via peer-reviewed writing assignments relative to learning in an active classroom discussion or traditional lecture. However, students with low ACT scores (17–23) did not show the same benefit from peer-reviewed written essays as the other students. These changes offer significant student learning benefits with minimal additional effort by the instructors.


2014 ◽  
Vol 76 (2) ◽  
pp. 101-108 ◽  
Author(s):  
Kathrin F. Stanger-Hall ◽  
Julianne A. Wenner

We assessed the performance of students with a self-reported conflict between their religious belief and the theory of evolution in two sections of a large introductory biology course (N = 373 students). Student performance was measured through pretest and posttest evolution essays and multiple-choice (MC) questions (evolution-related and non-evolution-related questions) on the final exam and posttest. The two class sections differed only in exam format: MC with or without constructed-response (CR) questions. Although students with a reported conflict scored significantly lower on the final exam in the MC-only section, they scored equally well in the MC+CR section, and all students in the MC+CR section performed significantly better overall. As a result, (1) a religious conflict with evolution can be negatively associated with student achievement in introductory biology, but (2) assessment with constructed response was associated with a closed performance gap between students with and without a conflict. We suggest that differences in exam format and focus on student acceptance of evolution (either evidence-based or opinion), rather than reported conflict, may contribute to the inconsistencies in student learning of evolution across research studies, and that CR questions may help students overcome other obstacles to learning evolution.


2017 ◽  
Vol 16 (2) ◽  
pp. ar30 ◽  
Author(s):  
Amanda J. Sebesta ◽  
Elena Bray Speth

In college introductory science courses, students are challenged with mastering large amounts of disciplinary content while developing as autonomous and effective learners. Self-regulated learning (SRL) is the process of setting learning goals, monitoring progress toward them, and applying appropriate study strategies. SRL characterizes successful, “expert” learners, and develops with time and practice. In a large, undergraduate introductory biology course, we investigated: 1) what SRL strategies students reported using the most when studying for exams, 2) which strategies were associated with higher achievement and with grade improvement on exams, and 3) what study approaches students proposed to use for future exams. Higher-achieving students, and students whose exam grades improved in the first half of the semester, reported using specific cognitive and metacognitive strategies significantly more frequently than their lower-achieving peers. Lower-achieving students more frequently reported that they did not implement their planned strategies or, if they did, still did not improve their outcomes. These results suggest that many students entering introductory biology have limited knowledge of SRL strategies and/or limited ability to implement them, which can impact their achievement. Course-specific interventions that promote SRL development should be considered as integral pedagogical tools, aimed at fostering development of students’ lifelong learning skills.


Author(s):  
Kristin Huysken ◽  
Harold Olivey ◽  
Kevin McElmurry ◽  
Ming Gao ◽  
Peter Avis

Collaborative, project-based learning models have been shown to benefit student learning and engagement in the STEM disciplines. This case study evaluates the use of highly collaborative project- and problem-based learning models in introductory courses in the geosciences and biology. In the geosciences, we developed project-based modules with a strong local focus. Student teams worked on three project-based laboratories dealing with the local geology/geomorphology, water quality of a local stream, and local flooding issues. These replaced traditionally taught laboratories on topographic maps and rivers and streams. Student teams presented project results in lieu of taking a traditional laboratory practical. In biology, we designed a collaborative learning model that incorporated three problem-based learning modules into a first-semester introductory biology course. Students were assigned topics in evolution, cell biology and genetics to research independently during the course of the semester, with each module culminating in a brief presentation on the topic. Modules were designed to mirror concepts being covered in the lecture. Preliminary results suggest that student performance and attitudes towards course material benefitted from this learning model. The authors consider outcomes, benefits, and challenges to students and instructors.


Author(s):  
Lori Goff

A peer-mentoring program was developed for students in an introductory biology course at a university in Ontario, Canada. Students could attend up to five peer-mentoring sessions during their first semester. Quantitative-survey, participation, and academic data spanning from 2003 through 2007 were reviewed for the purpose of evaluating the program. An objectives-oriented approach was used to determine if the program was meeting its goals to improve students’ introductory biology grades, facilitate transitioning experiences, and encourage students to pursue studies in biology. Data analysis revealed that students who participated in the program felt that it was a valuable experience. Students attending three or more sessions performed significantly better in their introductory biology courses, measured by final grades achieved, than those attending fewer sessions. There were no indications that the peer-mentoring program had any impact on students’ perceptions of transitioning to university or on their program selection preferences. Recommendations are made to improve the peer-mentoring program to better align its components and objectives. Un programme de mentorat par les pairs destiné aux étudiants qui suivent un cours d'introduction à la biologie a été implanter dans un université situé dans la province de l’Ontario. Les étudiants avaient accès à cinq séances de mentorat par les pairs au cours du premier semestre. Afin d’évaluer le programme, les chercheurs ont effectué des sondages quantitatifs, examiné la participation et les notes des étudiants entre 2003 et 2007. Ils ont utilisé une méthode axée sur les objectifs afin de déterminer si le programme atteignait ses objectifs qui consistaient à améliorer les notes des étudiants au cours d’introduction à la biologie, à faciliter leur transition et à les encourager à poursuivre des études en biologie. L'analyse des données révèle que les étudiants qui ont participé au programme de mentorat, l’ont trouvé utile. Les notes des étudiants qui ont participé à trois ou quatre séances étaient considérablement plus élevées que celles de ceux qui ont assisté à moins de séances. Rien n’indique que le programme de mentorat par les pairs influe sur la perception des étudiants en ce qui a trait à la transition vers l’université ni sur leurs préférences en matière de choix de programmes. Les chercheurs recommandent d’améliorer le programme de mentorat afin de mieux harmoniser ses composantes et ses objectifs.


2010 ◽  
Vol 9 (4) ◽  
pp. 473-481 ◽  
Author(s):  
Marin Moravec ◽  
Adrienne Williams ◽  
Nancy Aguilar-Roca ◽  
Diane K. O'Dowd

Actively engaging students in lecture has been shown to increase learning gains. To create time for active learning without displacing content we used two strategies for introducing material before class in a large introductory biology course. Four to five slides from 2007/8 were removed from each of three lectures in 2009 and the information introduced in preclass worksheets or narrated PowerPoint videos. In class, time created by shifting lecture material to learn before lecture (LBL) assignments was used to engage students in application of their new knowledge. Learning was evaluated by comparing student performance in 2009 versus 2007/8 on LBL-related question pairs, matched by level and format. The percentage of students who correctly answered five of six LBL-related exam questions was significantly higher (p < 0.001) in 2009 versus 2007/8. The mean increase in performance was 21% across the six LBL-related questions compared with <3% on all non-LBL exam questions. The worksheet and video LBL formats were equally effective based on a cross-over experimental design. These results demonstrate that LBLs combined with interactive exercises can be implemented incrementally and result in significant increases in learning gains in large introductory biology classes.


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