Undergraduate Biology Research Articles

A Pedagogical Proposal for Enhancing Undergraduate Biology Education through Complex Systems Thinking (CST)

This article is centered around the key question: how do we address teaching about biology, based on complex systems? In the dynamic landscape of biological sciences, the exploration of life's intricacies demands a holistic and interconnected approach. Complexity science and systems thinking offer a transformative framework for understanding the dynamic and interconnected nature of biological systems. As educators in the field of biology, it is imperative to equip undergraduate students with the tools to navigate and comprehend the ever-growing complexity of living systems. Traditional reductionist views, while valuable in understanding specific components of biological phenomena, often fall short in capturing the intricate interconnections and emergent properties that characterize living systems. In the pursuit of understanding these complexities, undergraduate biology education must transcend traditional reductionistic silos and embrace holistic interdisciplinary approaches such as complexity science and systems thinking. This article delves into the integration of Complex Systems Thinking (CST) in undergraduate biology courses, highlighting its significance, pedagogical implication, and practical strategies for implementation. Furthermore, it describes the key characteristics, and proposes a few pedagogical concepts associated with complexity, emergence, and systems thinking. The primary goal is to provide biology educators with the tools and enough basic information about the ‘features of complexity’, utilized in Big History, so that they can consider why and how such an approach might be applied in the education of both biologists and a scientifically literate citizenry.

Charting a new vision: lessons on Vision & Change from a network of biology educators.

The 2011 Vision & Change report outlined several recommendations for transforming undergraduate biology education, sparking multiple pedagogical reform efforts. Among these was the Promoting Active Learning and Mentoring (PALM) network, an NSF-funded program that provided mentorship and training to instructors on implementing active learning in the classroom. Here, we provide a perspective on how members of the biology education community in PALM view the recommendations of Vision & Change, drawing upon our experiences both as members of PALM and as leaders of an associated project funded by another NSF grant that hosted PALM alumni at various conferences. These efforts have allowed us to gain insight into how our alumni think of Vision & Change, including how they interpret its recommendations, the challenges and opportunities that they view for implementing these recommendations, and the areas they see as critical to be addressed in future national reports for supporting undergraduate biology education. We synthesize these voices here, providing perspectives from a diverse group of biology instructors on what they think about Vision & Change, and provide recommendations for the biology education community based upon these PALM community voices.

Conventional teaching vs. e-learning: A case study of German undergraduate biology students

Conventional teaching vs. e-learning: A case study of German undergraduate biology students

Teaching with TED: a curated set of TED Talks and discussion prompts for microbiology and cellular biology courses.

Engaging students in biology courses can be enhanced through assignments that introduce research relevant to course content. Despite their potential, such assignments are often underutilized due to the time required to identify suitable research and to create assignments. Here, we address this issue by proposing the use of TED Talks as a resource for introducing research related to scientific topics commonly taught in undergraduate biology courses. The extensive TED Talk library offers numerous options, but selecting appropriate content can be daunting for instructors. Here, we provide a curated set of TED Talks and field-tested discussion prompts aimed specifically for Microbiology and Cellular Biology courses. These assignments were implemented in both asynchronous online and synchronous in-person formats using discussion board forums, although alternative assignment formats can be easily adapted. Student feedback about these activities indicates that TED Talks helped students connect classroom material to real-world applications and enhanced their overall learning experience. Overall, TED Talks are an enjoyable and versatile tool to diversify biology curricula, relate content to real-world issues, and improve student engagement and comprehension. Here, we provide a framework of TED Talks and discussion prompts that instructors can adapt to their courses.

First-year undergraduate biology education students’ critical thinking and self-regulation: Implementation of a metacognitive-based e-learning module

This study examines the improvement of first-year students’ critical thinking and self-regulation by implementing a metacognitive-based e-module. To address the challenges of learning in accordance with the demands of the higher education curriculum, metacognitive-based e-modules are required. Metacognitive strategies such as analogies, concept maps, mnemonics, and discrepant events integrated into e-modules encourage students to be more critical and independent when understanding concepts and solving problems. The study employed quasi-experimental with two groups, a study group (instructed metacognitive-based e-module) control group (conventional module). Eighty-three students as respondents were involved. The descriptive results indicate that cognitive strategies promote curiosity, facilitate understanding, and aid in long-term memory. Metacognitive-based e-modules could encourage awareness, learning activities, evaluation and interpersonal skills. There is a significant difference in students' ability to think critically and self-regulation. The metacognitive strategy using e-module was found to be stimulating, thought-provoking, and facilitating students to have critical thinking and self-regulation.

Didactic student workbook in human anatomy and physiology: Implementation in undergraduate biology education

A didactic student workbook has been used to teach human anatomy and physiology. The didactic workbook has significantly reduced the disparity between teaching materials and students. It accommodated all student learning styles, integrated with asma al-husna (the best names are based on the characteristics of God). This workbook also integrates contemplative exercises. The purpose of this study was to investigate the learning outcomes and responses of students after utilizing the didactic workbook in their learning process. The study used a quasi-experimental methodology with a pre-test-post-test control group design. It involved 31 biology education students from UIN Mahmud Yunus Batusangkar. The experimental group was given homework assignments to complete in the didactic workbook, whereas the control group was given the task of summarising and answer the questions in the textbook. Both groups used the discussion method during in-class learning. Essay tests and students response questionnaires were used to collect data. The t-test was used to compare the N-gain of learning outcomes between the experimental and control groups. Descriptive analyses were conducted to examine student responses. The didactic workbook was significantly effective (p<0.05) in improving learning outcomes compared to the control class. The didactic student workbook was also responded to very positively by students. These findings indicate that a didactic student workbook has the potential to improve learning outcomes and interest in the learning of biology.

"Broadening Perspectives Activities" Improve LGBTQ+ Student Experiences and Religious Students' Content Comprehension.

Curricular content in undergraduate biology courses has been historically hetero and cisnormative due to various cultural stigmas, biases, and discrimination. Such curricula may be partially responsible for why LGBTQ+ students in STEM are less likely to complete their degrees than their non-LGBTQ+ counterparts. We developed Broadening Perspective Activities (BPAs) to expand the representation of marginalized perspectives in the curriculum of an online, upper-division, undergraduate animal behavior course, focusing on topics relating to sex, gender, and sexuality. We used a quasiexperimental design to assess the impact of the BPAs on student perceptions of course concepts and on their sense of belonging in biology. We found that LGBTQ+ students entered the course with a better understanding of many animal behavior concepts that are influenced by cultural biases associated with sex, gender, and sexuality. However, LGBTQ+ students who took the course with the BPAs demonstrated a greater sense of belonging in biology at the end of the term compared with LGBTQ+ students in the course without BPAs. We also show that religious students demonstrated improved comprehension of many concepts related to sex, gender, and sexuality after taking the course with BPAs, with no negative impacts on their sense of belonging.

A Model for Emotional Intelligence in Biology Education Research.

Informed by social science fields including psychology and public health, we propose a Model for Emotional Intelligence to advance biology education research in affective learning. The model offers a shared discourse for biology education researchers to develop and assess evidence-based strategies to perceive, use, understand, and manage emotions for students and instructors in life sciences classrooms. We begin by reviewing the connection between stress, emotional invalidation, Sense of Belonging, and Science Identity as it relates to emotions in undergraduate life sciences classrooms. Next, we highlight the impact that emotionally invalidating classroom environments have on science students' development of psychological distress, maladaptive coping, and high-risk behaviors. Assuming Emotional Intelligence can be taught and learned (i.e., the ability model of Emotional Intelligence), we develop a Model for Emotional Intelligence to advance biology education research in this arena. This essay aims to inform assessments of current and future interventions designed to counteract emotional invalidation and encourage the development of emotional management among students and instructors. In alignment with our collective effort to support student well-being in the life sciences, the study of Emotional Intelligence in undergraduate biology education has the potential to support student mental health as future scientists and health care practitioners.

Instructor recommendations for student learning strategies and metacognition: An analysis of undergraduate biology syllabi

AbstractAn inequitable distribution of resources and opportunities for marginalized students (i.e., opportunity gaps) leads to challenges in identifying effective study behaviors, metacognition, and academic help‐seeking in higher education. While students benefit when these skills are taught explicitly through co‐curricular workshops and courses, these interventions often require significant time investment from faculty and students, underscoring a need for alternative interventions that provide students with access to resources related to these skills. Course syllabi are one potential resource that can address these needs, and we asked to what extent biology syllabi are used for this purpose. We collected a national sample of introductory biology syllabi and used content analysis to determine if syllabi are learner‐centered and whether they incorporate information on study behaviors, metacognition, and academic help‐seeking. We found that most syllabi are not learner‐centered, encourage ineffective study behaviors, did not include metacognition recommendations, and include incomplete academic help‐seeking recommendations. We make several recommendations on how to incorporate complete, accurate information regarding study behaviors, metacognition, and academic help‐seeking.

Identifying factors associated with instructor implementation of three-dimensional assessment in undergraduate biology courses.

Recent national calls to transform undergraduate science education have centered on engaging students in scientific practices as a means to help them develop deeper insights into science. The three-dimensional framework for science education encapsulates the goals of these national calls by recommending that instructors integrate scientific practices, crosscutting concepts, and disciplinary core ideas throughout their courses. Prior research has found that introductory undergraduate biology exams contain few three-dimensional items suggesting that instructors likely face barriers in meeting the goals of national calls. To better understand these putative challenges, we explored factors potentially associated with three-dimensional alignment. Our generalized linear mixed model indicated that instructors who used three-dimensional items on their exams were more likely to use Bloom's Taxonomy when designing their exams and were more likely to write these items using a constructed-response format. We also found that professional development opportunities did not necessarily change the likelihood an instructor would employ three-dimensional items. We previously identified that few items in our sample fully aligned to scientific practices, making scientific practices the limiting dimension for three-dimensional alignment. Our subsequent analysis here revealed that most biology instructors had exam items that were at least partially aligned to scientific practices. Based on our results, we highlight the significant time and resources that instructors likely need to write and grade constructed-response assessments, suggest that instructors build on items that are mostly aligned to scientific practices to increase their three-dimensional alignment, and propose ways that professional development programs and communities might further support instructors in meeting national calls.

A student-partnered approach to design a course-based undergraduate research experience (CURE) in biological sciences

Immersive research opportunities allow students to take ownership of their learning, explore based on curiosity, and engage in the scientific process while developing confidence and skills. However, research positions for biology undergraduates are limited, and conventional teaching labs are often restricted to pre-designed experiments without opportunities for curiosity-driven research. Course-based undergraduate research experiences (CUREs) are discovery-based research experiences that provide students with accessible avenues to explore research. Here we describe a unique student-partnered approach to the design of a foundation-level CURE in biological sciences (BIO-CURE). As student partners, we were mentored by faculty as we designed CURE projects that considered the interests and abilities of our peers to create a course structured around student-driven scientific exploration. We anticipate that this case study of our approach and experiences as the student partners of the CURE design team will serve as a helpful resource for other departments and institutions.

Assessing the Impact of an Undergraduate Biology Course for Non-Majors on Students’ Scientific Literacy, Perceptions of Science, and Confidence in Their Ability to Engage in Scientific Inquiry

Assessing the Impact of an Undergraduate Biology Course for Non-Majors on Students’ Scientific Literacy, Perceptions of Science, and Confidence in Their Ability to Engage in Scientific Inquiry

PSVII-28 A comparative analysis on student learning using DNA barcoding in undergraduate biology courses

Abstract DNA barcoding is a growing field and is increasingly used to identify animal and plant specimens down to the species level. This type of molecular work is beneficial for animal science students for its use in identifying insect pests or bacterial infections. However, it is equally important for students outside of STEM concentrations to be exposed to molecular work to develop a better understanding of science and combat the growing distrust in science. The overall goal of this project was to train non-molecular biologists in DNA barcoding using active learning techniques. The objectives of the present study were to 1) expose two groups of students (BSCI145 and BSCI467) to molecular lab work, particularly DNA barcoding, 2) effectively communicate how molecular methods can be applied to ecological purposes, and 3) demonstrate that this molecular method can be used for university-level education at two scales. We hypothesized that students at both the 100 and 400 level would exit this experience with a proportionally deeper understanding of how DNA barcoding works and an appreciation for its applications as a result of the hands-on module. We did not expect there to be a significant barrier between the ability to learn this molecular method of 100 and 400 level students. To assess these hypotheses, students in both courses were given a survey at the beginning and end of the semester with the same or very similar questions to observe how their knowledge of DNA barcoding did or did not change. One semester of BSCI145 and 2 semesters of BSCI467 were sampled (n = 24 100 level students, n = 84 400 level students). Surveys were collected anonymously and evaluated using rubrics to assess “correctness”. An ANOVA revealed statistically significant effects from both the course level (P = 0.004) and the survey scores (P = 0.001), indicating that both course level and basal knowledge contribute to explaining the variance in learning. Additionally, Tukey HSD test results displayed students in BSCI 145 exhibited a significantly greater mean learning change when compared with both BSCI 467 2022 and BSCI 467 2023 (P = 0.008 and P = 0.006 respectively). Finally, a linear regression analysis displayed a significant negative relationship between pre-survey scores and mean learning change (β = -0.850, P = 0.001). This means that students with a greater initial learning reference point will not increase in learning as much when compared with students with a decreased initial learning reference point. In conclusion, we accept our hypotheses that students at different academic levels with different backgrounds can successfully learn molecular techniques when provided hands-on modules. This is relevant to education and extension when working with individuals who may not know hard science.

Models of Disability as Research Frameworks in Biology Education Research.

Advancing equity and justice in undergraduate biology education requires research to address the experiences of disabled students. Scholars working in disability studies have developed models of disability that inform Discipline-Based Education Research (DBER). To date, DBER literature has been predominantly informed by the medical and social models of disability. The medical model focuses on challenges that affect people with disabilities on an individual basis, while the social model focuses on how one's surrounding environment contributes to the construction of disability. In this essay, we discuss past DBER research and opportunities for future research using each of these models. We will also discuss a third, less commonly used model that offers exciting opportunities to drive future research: complex embodiment. Complex embodiment positions disability as a social location that reflects a greater societal value structure. Further examining this value structure reveals how ability itself is constructed and conventionally understood to be hierarchical. Additionally, we explain epistemic injustice as it affects disabled people, and how future education research can both address and counteract this injustice. We discuss how expanding the frameworks that serve as lenses for DBER scholarship on disability will offer new research directions.

An exploration of the relationship between active learning and student motivation in STEM: a mixed methods study.

Much of the research on science, technology, engineering, and mathematics (STEM) students' motivation measures the relationship between student motivation and academic outcomes, focusing on the student's mindset. Our mixed-methods research takes a different approach and considers the relationship between student motivation and instructional practices. Teaching practices and student motivation were analyzed simultaneously in undergraduate Biology classes using a self-determination theory-based survey to measure students' motivation during courses that were observed using the Classroom Observation Protocol for Undergraduate STEM (COPUS), and observation notes were collected to document instructor and student behaviors. Quantitative data were used to differentiate students' motivational levels, and qualitative data were collected to describe how instructors use specific teaching practices. The results provide a lens into how students' intrinsic motivation varies alongside the instructional practices and interactions in these classes. We found a correlation between higher levels of student motivation in interactive lectures and student-centered teaching profiles. This study highlights how the same practice can be implemented by multiple instructors with varying student motivation scores, pointing out the importance of fidelity to evidence-based instructional practice methods. The results of this study are discussed in the context of published empirical studies examining evidence-based instructional practices that are conceptually supportive of autonomy, competence, and relatedness. Active learning practices observed in this study correlated to positive learning outcomes are discussed and may serve as a guide for instructors interested in implementing specific active learning practices. Recommendations for instructors and departments that are interested in flexible methods to monitor progress toward active learning practices in biology and other STEM disciplines by combining the COPUS and self-determination survey results are presented.NEW & NOTEWORTHY This study uses a novel combination of instruments to describe students' intrinsic motivation in response to teaching practices. Findings demonstrate that active learning methods may support higher student motivation. Recommendations drawn from the study include using a variety of active learning methods, using evidence-based instructional methods with fidelity, and monitoring the students' affective response to those methods. Alignment of active learning practices to the components of self-determination may result in higher quality student motivation in science, technology, engineering, and mathematics (STEM) courses.

Open Resources for Biology Education (ORBE): a resource collection.

In undergraduate life sciences education, open educational resources (OERs) increase accessibility and retention for students, reduce costs, and save instructors time and effort. Despite increasing awareness and utilization of these resources, OERs are not centrally located, and many undergraduate instructors describe challenges in locating relevant materials for use in their classes. To address this challenge, we have designed a resource collection (referred to as Open Resources for Biology Education, ORBE) with 89 unique resources that are primarily relevant to undergraduate life sciences education. To identify the resources in ORBE, we asked undergraduate life sciences instructors to list what OERs they use in their teaching and curated their responses. Here, we summarize the contents of the ORBE and describe how educators can use this resource as a tool to identify suitable materials to use in their classroom context. By highlighting the breadth of unique resources openly available for undergraduate biology education, we intend for the ORBE to increase instructors' awareness and use of OERs.

Advanced biology students' individual conceptions of scientific researchers after participating in biomedically relevant CRE.

While undergraduate research has been shown to be a high-impact educational practice, it is logistically impossible for all undergraduate biology majors to have long-term faculty-mentored research experience. Therefore, biology educators and researchers must devise opportunities to engage more students in undergraduate research outside of working directly in their labs. Course-Based Research Experiences (CREs), structured as authentic research experiences, are one such opportunity. In this work, we describe the effects of a CRE with biomedical relevance on students' research skills, attitudes toward science, and perceptions of scientific research and scientific researchers. Results demonstrate that students gained experience in independent research skills including designing their own research project, being accountable for part of a project, and writing a research proposal. Students' perceptions of scientific research and researchers, assessed by the Draw-A-Researcher Task, did not show changes among the whole group, but individual analysis yielded meaningful results related to students' personal changes in how they perceived research and researchers, including their perception of themselves as researchers. This work demonstrates the substantial impact of CREs on upper-level biology undergraduate and graduate students.

Defining evolution: exploring students’ conceptions of evolution in introductory biology courses

BackgroundUnderstanding evolution is an important part of undergraduate biology education. Despite its importance, however, students often struggle to understand evolution, often holding preconceived notions of what evolution is. Here, we investigate how students in both majors and non-majors introductory biology define and conceive of evolution at the start of the semester for a two-year college and a four-year university near each other. We analyze open-ended responses to an in-class activity on the first day of the semester that asked students to define evolution, generating insight into how students are thinking of evolution prior to any formal instruction on evolution in college.ResultsOur analysis of over 300 student responses reveals that students hold diverse conceptions about evolution, with some students perceiving evolution in the context of evolutionary processes while other students define evolution by referring to perceived evolutionary consequences. In addition, we identify multiple non-normative conceptions about evolution, including students viewing evolution and natural selection as synonymous and not recognizing other evolutionary forces, and find that very few students likely have developed mental models linking evolution and genetics. In addition, we find few differences between how students at the two- and four-year institutions perceive evolution, and similarly few differences between students in a majors and non-majors introductory biology, suggesting that these conceptions of evolution are widespread at the beginning of introductory biology, regardless of major or institution.ConclusionsWe situate our results in the existing literature examining student conceptions of evolution, with our results extending past work that has primarily relied on more closed-ended questions or focused on specific evolutionary concepts (e.g., natural selection). Our results largely align with past work on student thinking of evolution but provide a broader, more holistic perspective at the ideas and framework that students are drawing upon when introductory biology instructors first introduce the term ‘evolution’. We conclude our paper by discussing implications for the biology education research community as well as instructors.

Connecting plant science education in undergraduate life science courses to plant awareness disparity, Vision and Change, and sustainability careers

ABSTRACT Ensuring that botany and plant sciences are being included in undergraduate life science curricula is necessary for developing a future global sustainability workforce. To gain a baseline understanding, we surveyed life science educators in the U.S. about current botanical education. We further evaluated these data to determine connections to the frameworks of plant awareness disparity (PAD), a framework detailing the inability to notice or appreciate the plants in one’s own environment, and Vision and Change, an educational framework in the U.S. for preparing undergraduate biology students for the 21st century. Results from 245 responses revealed that most instructors use botanical examples and implement diverse hands-on botanical experiences. Our data suggest that hands-on botanical experiences are better suited to address PAD, the more science practice-centred framework, while plant examples are better suited to increase the understanding of core concepts of Vision and Change, the more concept-centred framework. We recommend that life science educators should 1) remain diligent in providing plant examples and hands-on botanical experiences in large introductory courses, 2) incorporate more botany education in general education courses (not required by the major but required by the institutions) and non-major courses, and 3) include educators outside of botany in these efforts.

Diving into research without wading through content: A skills-based cell biology course emphasizing the unknown.

In a typical undergraduate biology curriculum, students do not dive into research until they first wade through large amounts of content. Biology courses in the first few years of the college curriculum tend to be lecture-based and exam-based courses. As a result, science students are mainly exposed to content knowledge-not the skills scientists practice daily. While students may practice manual techniques in lab sections of lecture courses, the higher-level analytical research skills are reserved for the final semesters of college. To address this issue, we created an undergraduate cell biology course centered around practicing research skills, and fully accessible to students with no prerequisite content knowledge. In our course, students read primary literature (no textbooks) and were assessed by writing 12 analytical response papers and a full research proposal (no exams). Each student chose a topic for their semester-long project, conducted a literature review, and proposed future experiments-all in a stepwise fashion with plentiful feedback. The students' thorough comprehension of the primary literature, along with successful completion of the research proposals, shows that the course achieved its goals of building these skills-even in the nonbiology majors taking this pilot course. Pre- and post-survey results demonstrate that students gained feelings of confidence and preparedness for future research experiences. We envision a future model in which such a skills-based course replaces a more traditional cell biology course, giving students the opportunity to practice high-level analytical research skills from very early on in the undergraduate biology curriculum.