An Inquiry-based Approach for Teaching Type III Functional Responses in Ecology

Maize (also known as corn) has played an important role in human agriculture ever since its domestication by indigenous peoples of Mexico some 10,000 years ago. The crop is now planted across the world, including in China. However, several invasive pests, including the fall armyworm Spodoptera frugiperda, have threatened this crop and lowered yield. Eupeodes corollae, an endemic syrphid hoverfly, has been proposed as a biological control agent. Here, students will explore the antagonistic relationship between S. frugiperda and E. corollae, with both species feeding on larvae of the other species, and learn about type III functional responses. This Figure Set teaches about a reciprocally antagonistic ecological system, with systems and evolution being cross-cutting themes of the 4-Dimensional Ecology Education (4DEE) framework. In addition, this Figure Set also facilitates students\u27 examination of environmental ethics (as pertaining to biological control agents) and agricultural ecosystems, allowing for students to learn about human-environment interactions

Using Primary Literature on SARS‐CoV‐2 to Promote Student Learning about Evolution

The ongoing COVID‐19 pandemic caused by SARS‐CoV‐2 has caused widespread deaths, illnesses, and societal disruption. I describe here how I pivoted a discussion‐based senior biology capstone course to include a multiweek module surrounding one primary literature paper on the evolution of SARS‐CoV‐2 and the subsequent scientific discourse about the paper. Using a gradual reveal of the paper following the CREATE method (consider, read, elucidate, and think of the next experiment), I challenged students to learn new evolutionary principles and critically analyze the data surrounding the evolution and transmission of SARS‐CoV‐2 presented in the paper. I also provide general advice for implementing this module in future courses

Promoting Academic Integrity and Student Learning in Online Biology Courses

The COVID-19 pandemic has caused an abrupt shift in biology courses, with many transitioning to online instruction. This has led to an increased concern about academic integrity and cheating in online courses. Here, I draw upon the peer-reviewed literature to provide evidence-based answers to four questions concerning cheating and online biology courses: (i) What types of cheating are prevalent with the shift to online instruction? (ii) Should instructors make assessments open book and open notes? (iii) How does cheating occur in biology lab courses? (iv) Finally, what strategies can biology instructors take to uphold academic integrity with online learning? I frame these answers not only around academic integrity but on the potential impacts on student learning and discuss some strategies that may not only deter cheating but also promote greater student learning

A Choose-Your-Own Classroom-Based Activity That Promotes Scientific Inquiry about RNA Interference

RNA interference (RNAi), the process that results in the degradation of a target gene’s mRNA, is a fundamental part of eukaryotic gene regulation and is also an important molecular technique that allows for experimental manipulation of gene expression without altering DNA sequences. Despite the importance of RNAi, there have been relatively few lecture-based activities designed to teach about the consequences of this process and counter common misconceptions. I present here an inquiry-based activity that is centered around a “choose your own experiment” design where students generate hypotheses and critically evaluate their ideas by choosing several simulated experiments. The activity presents students with one of the original puzzling observations, the discovery that triggering overexpression of a given gene in a flower resulted in an opposite change in phenotype than expected, and the subsequent discovery that there was a dramatic decrease of that gene’s mRNA, that sparked the discovery of RNAi. Students then propose a molecular mechanism for these results before using a limited budget of funding to simulate their choice of experiments. Simulated results are provided for these experiments, and students must work together to interpret and discuss these results before deciding on the next experiment. I provide a guide for instructors on how to implement this activity, with suggestions on how to vary the activity to fit different class sizes as well as an abbreviated version for instructors who are short on time. Finally, I include an aligned assessment so that instructors may check student learning about the impacts of RNAi

Neutral Theory and Beyond: A Systematic Review of Molecular Evolution Education

Molecular evolution—including the neutral theory of molecular evolution—is a major sub-discipline of evolution and is widely taught in undergraduate evolution courses. However, despite its ubiquity, there have not been any previous attempts to compile and review the molecular evolution education literature. Here, we draw upon the framework proposed in a past literature review examining the broader evolution education landscape to conduct a literature review of papers related to molecular evolution education, classifying the contributions of such papers to evolution pedagogy as well as evolution education research. We find that there remains very limited coverage of molecular evolution in the education literature, with existing papers focusing primarily on providing new instructional modules and strategies for teaching molecular evolution. Our work suggests several areas of critical need as well as opportunities to advance evolution education and evolution education research, including compiling instructional goals for the sub-discipline, developing validated assessments, and investigating student thinking related to molecular evolution. We conclude by providing general strategies, advice, and a novel curricular activity for teaching molecular evolution and the neutral theory of molecular evolution

Insight from Biology Program Learning Outcomes: Implications for Teaching, Learning, and Assessment

Learning goals and objectives are a key part of instruction, informing curricular design, assessment, and learning. These goals and objectives are also applied at the programmatic level, with program learning outcomes (PLOs) providing insight into the skills that undergraduate biology programs intend for their students to master. PLOs are mandated by all major higher education accreditation agencies and play integral roles in programmatic assessment. Despite their importance, however, there have not been any prior attempts to characterize PLOs across undergraduate biology programs in the United States. Our study reveals that many programs may not be using PLOs to communicate learning goals with students. We also identify key themes across these PLOs and differences in skills listed between institution types. For example, some Vision & Change core competencies (e.g., interdisciplinary nature of science; connecting science to society; quantitative reasoning) are highlighted by a low percentage of programs, while others are shared more frequently between programs. Similarly, we find that biology programs at 4-year institutions likely emphasize PLOs relating to computational skills and research more than at 2-year institutions. We conclude by discussing implications for how to best use PLOs to support student learning, assessment, and curricular improvements

Characterizing First-Year Biology Majors’ Motivations and Perceptions of the Discipline

Understanding why students choose to major in biology provides important insight into the motivations of biology majors. It is similarly important to investigate how biology majors perceive the discipline, including associated activities, such as independent research, which can influence students’ interests in the field and likelihood to persist in science, engineering, technology, and math. However, there has been little work done examining biology student motivations and perceptions, particularly at non-research-intensive universities or after the COVID-19 pandemic started. To address this gap, we surveyed the first-year cohort of biology majors at a private, comprehensive university. We found that students largely reported choosing the major because of interest in the field and/or the fact that the major would prepare them for specific careers. We also found that students had skewed conceptions of several major subdisciplines of biology (ecology and evolution; cell and molecular biology; and anatomy and physiology). Finally, most students reported not knowing what independent research is or presented naive conceptions of research. Our work offers a characterization of how first-year students at our university perceive the discipline, and we conclude by discussing changes that our program has made to address these results as well as implications for instructors and biology administrators

A Multi-Year Longitudinal Study Exploring the Impact of the COVID-19 Pandemic on Students’ Familiarity and Perceptions of Active Learning

The COVID-19 pandemic caused nearly ubiquitous emergency remote teaching in both secondary and post-secondary education. While there has been a plethora of work examining how instructors adjusted classes to incorporate active learning during emergency remote teaching, there has only been minimal work examining how such emergency remote teaching may have influenced students’ perceptions of active learning. Here, we conduct a longitudinal multi-cohort study at one institution across nine semesters before, during, and after emergency remote teaching due to the pandemic to explore how college students’ familiarity and perceptions of active learning have shifted over time because of the pandemic. Our results reveal decreases in familiarity with active learning during emergency remote teaching, with familiarity remaining lower than pre-COVID even after the end of emergency remote teaching. In addition, our results indicate shifts in students’ perceptions of active learning, leading to potentially higher student resistance to active learning following emergency remote teaching. We conclude by discussing implications for instructors to better support active learning and promote engagement in active learning classes following the end of emergency remote teaching

Exploring Physiology Instructors’ Use of Core Concepts: Pedagogical Factors that Influence Choice of Course Topics

The physiology core concepts are designed to guide instructors in undergraduate physiology courses. However, although past work has characterized the alignment of physiology programs with the core concepts, it is unclear to what extent these core concepts have influenced instructors’ pedagogical decisions or how represented these core concepts are across physiology courses. We surveyed undergraduate physiology instructors to determine their familiarity with the core concepts, the impact of the core concepts on their teaching, as well as the alignment of their courses with these core concepts. Instructors report predominantly relying on textbooks and past syllabi of their courses as resources that influence their instructional decisions on which topics to include in a course. However, many instructors report reorganizing their physiology courses in subsequent iterations or reducing the number of concepts covered to allow more time for critical thinking and active learning. In addition, we find that the majority of instructors indicate that they are not knowledgeable about the list of physiology core concepts and that the influence of these core concepts is limited even for those who report familiarity with the list of core concepts. Finally, we find that instructors report uneven coverage of physiology core concepts in their courses, with some core concepts ubiquitous while others are sparsely covered. We conclude by discussing implications of our work for the physiology education community and call for the continued development of resources to support new physiology instructors and the need to promote coverage of certain core concepts in physiology courses

Exploring the Impact of Subject Placement on Exam Questions​

Quizzes and exams are crucial elements of undergraduate biology courses; however, little research has been done exploring the importance of the phrasing used in the questions on these assessments. Question framing has the potential to impact student performance and sense of belonging greatly. In this study, we conducted an experiment where we created three versions of the exact same question except for the framing for the experimental scenarios. One version was written with self-referential framing using the term “you,” simulating the student conducting the experiment; another version used classmate-referential framing, placing one of their peers in the experiment; the third version, referred to as authentic framing, included names from a diverse variety of scientists. All students and sections received the exact same questions for each assessment, with the phrasing varying between the assessments given throughout the semester (the first quiz used self-referential, the second quiz used classmate referential, etc.). This study is the second iteration of a similar study that used the same framework but instead gave each section a different assessment framing (Hsu, Clark, Hill, & Rowland-Goldsmith, 2023). Across all sections, our results indicate no significant change in students’ grades, self-reported stress, or sense of belonging. Students reported a strong preference for the self-referential version of the assessment question, followed by classmate-referential framing and authentic framing as the least preferred version. When we asked students why they preferred certain versions, we received a variety of responses that were similar to the first iteration of this study, indicating that question framing can affect a student’s attitude towards questions