We must teach more effectively: here are four ways to get started

Extremophile enzyme activity lab: using catalase from Pyrobaculum calidifontis to highlight temperature sensitivity and thermostable enzyme activity

There are places on earth that are considered to possess extreme physico-chemical characteristics as they relate to life. Surprisingly, there are microbes that have adapted various strategies that enable them to form robust communities in these environments. The microbes that live in these environments, called extremophiles, are described as being thermophilic, psychrophilic, halophilic, acidophilic, alkaliphilic, barophilic, and so on. Given that extremophiles were not discovered until relatively recently due to a view point that the environments in which they inhabited were not conducive to life, it is reasonable to conclude that the concept of extremophiles may be hard to grasp for students. Herein is described a laboratory exercise adapted from laboratory exercises that use mesophilic catalase enzymes to illustrate the influence of physico-chemical parameters on enzyme activity. Catalase is an enzyme that accelerates the degradation of hydrogen peroxide to water and oxygen gas. In addition to mesophilic catalases, the catalase from Pyrobaculum calidifontis, a hyperthermophile with an optimal growth temperature of 90°C, is used to highlight the adaptation of an enzyme to an extreme environment. A visual comparison of bubble production by the hyperthermophilic and mesophilic enzymes after heating at high temperatures dramatically illustrates differences in thermostability that will likely reinforce concepts that are given in a pre-laboratory lecture that discusses not only the extremophiles themselves but also their applications in biotechnology and possible role in the field of astrobiology.

Effect of educational intervention on computer-aided-design and computer-aided-manufacturing technology to preclinical dental students

INTRODUCTION

This study evaluated the effectiveness of a video presentation instruction compared to the prevailing traditional lecture provided in the preclinical classroom when introducing computer-aided design/computer-aided manufacturing (CAD/CAM) technology.

MATERIALS AND METHODS

This study was conducted as a controlled educational trial (single-blind) on 120 first-year dental students. Students were assigned to two learning groups: the control (n = 60, traditional lecture) and the intervention (n = 60, video presentation). Both groups completed a self-efficacy scale (SES) survey before instruction. Then, the intervention group actively participated in a one-session video presentation while the control group was given a traditional lecture. After the presentations, student knowledge was assessed with a hands-on simulated exercise that was scored out of 60 points. At last, students completed a post-instruction student perception and attitude (SPA) survey. Inferential hypothesis testing was conducted with two-sample t-tests, and significance was defined as p ≤ .05.

RESULTS

There were no significant differences in the student pre-instruction SES scores between the control and intervention groups. After the video learning, CAD/CAM knowledge application during the hands-on simulated exercise showed significantly higher results in the intervention group as the assessment scores from the intervention group averaged 13.6 ± 2.0 points higher than the control group (p < .001). The results from the post-instruction SPA survey showed no statistically significant difference between groups.

CONCLUSION

With the video presentation technique, our first-year dental students were able to greatly enhance their CAD/CAM application skills. The results from this study could be applied at other dental educational institutions with potential similar outcomes.

Use of audience response systems (ARS) in physiotherapists' training: a qualitative study

OBJECTIVE

To explore the experience of using audience response systems (ARS) in postgraduate physiotherapy training.

DESIGN

Qualitative interview study following the 'reflexive thematic analysis' by Braun and Clarke.

SETTING

Higher education university.

PARTICIPANTS

Ten Italian students (60% men, N=6; 40% women, N=4) agreed to partake in the interviews.

RESULTS

We generated four themes. Specifically, the ARS were perceived: (1) as a 'Shared Compass' (theme 1) between the student and the lecturers to monitor and modify the ongoing students' learning journey; (2) useful to 'Come Out of Your Shell' (theme 2) as they help students to overcome shyness and build a team with peers; (3) as 'A Square Peg in a Round Hole' (theme 3) as they should not be used in situations that do not suit them; (4) as 'Not Everyone's Cup of Tea' (theme 4) as mixed opinions among ARS' utilities were found under some circumstances (eg, memorisation process and clinical reasoning).

CONCLUSION

Physiotherapy lecturers must use ARS critically, respecting when (eg, not at the end of the lesson) and how to propose them, keeping in mind that some skills (eg, practical ones) might not benefit from their use. Moreover, they need to consider that the ARS are not a tool for everyone, so ARS must be integrated into a multimodal teaching paradigm.

Which lecturers' characteristics facilitate the learning process? A qualitative study on students' perceptions in the rehabilitation sciences

BACKGROUND

In education, lecturers play a crucial role in facilitating students' learning process. However, only a few studies explored which lecturers' characteristics can facilitate this process in higher education for rehabilitation healthcare professionals. Starting from students' perspectives, our qualitative study investigated the lecturers' characteristics that facilitate students' learning process in the rehabilitation sciences.

METHODS

A qualitative interview study. We enrolled students attending the 2nd year of the Master of Science (MSc) degree in 'Rehabilitation Sciences of Healthcare Professions'. Different themes were generated following a 'Reflexive Thematic Analysis'.

RESULTS

Thirteen students completed the interviews. From their analysis, we generated five themes. Specifically, a lecturer that facilitates students' learning process should be: 1) 'A Performer who Interacts with the Classroom', 2) A Flexible Planner who Adopts Innovative Teaching Skills', 3) 'A Motivator who Embraces Transformational Leadership', 4) 'A Facilitator Who Encourages a Constructive Learning Context' and 5) 'A Coach who Devises Strategies to Reach Shared Learning Goals'.

CONCLUSIONS

The results of this study underscore the importance for lecturers in rehabilitation to cultivate a diverse set of skills drawn from the arts and performance, education, team building and leadership to facilitate students' learning process. By developing these skills, lecturers can design lessons that are worth attending not only for their relevant content but also for their value in human experience.

In the eye of the beholder - how course delivery affects anatomy education

BACKGROUND

The COVID-19 pandemic caused major shifts in students' learning strategies as well as teaching environments that profoundly affected the delivery of anatomy courses in medical schools. The Department of Anatomy at the University of Zagreb School of Medicine had a unique experience where the anatomy course in 2019/2020 was first taught in-person before transferring to an online course delivery, while the inverse happened in 2020/2021. The core curriculum, course material and examination criteria were the same in both academic years. The aim of the study was to determine whether course delivery affected students' perceptions of the course and whether it impacted students' engagement and success.

METHODS

The students' perceptions of the course were assessed via an anonymous course survey (student evaluation of teaching, SET). The questions in the SET assessed the usefulness of teaching modalities rather than students' satisfaction. Most questions were in the form of statements to which students responded with their level of agreement on a five-point Likert scale. Differences between responses in 2019/2020 and 2020/2021 were analyzed using the Mann-Whitney test. Effect size was estimated using Cliff's delta and association between responses was assessed using Spearman's r coefficient.

RESULTS

Students' perceptions were significantly affected by changes in course delivery. Students' success and engagement were higher in 2019/2020 when in-person teaching preceded online teaching. Furthermore, students' views on course organization and the usefulness of continuous assessment were more positive in 2019/2020. Finally, students' perceptions of the usefulness of online materials and activities were more positive in 2019/2020. All comparisons between the two academic years were statistically significant (P ≤ 0.0001 for all comparisons, Mann-Whitney test).

CONCLUSIONS

Students' perceptions of the anatomy course were dependent on the teaching environment they were exposed to at the beginning of the course. A transfer from in-person to online course delivery was more successful than vice-versa. This has important implications for structuring hybrid courses in medical education in the future.

Biotechnology Immersion Program: professional development where the participants do the preparation, teaching, and outreach to maximize learning gains

Professional development for teachers of primary, intermediate, and secondary schools (Kindergarten to Grade 12; K-12), especially for highly technical subjects such as Microbial Biotechnology, can involve arduous and ineffective training methods prioritizing content delivery over sound pedagogical techniques. Teachers are learning complex content, techniques, and pedagogies but have little time to practice or gain experience and confidence in their newly acquired skills. The Biotechnology Immersion Program (BiP) sought to overcome this challenge by incorporating an intentional immersive experiential system into professional development; teachers learn new content, experience hands-on activities, and work through assessments in the role of a student while experienced subject matter expert faculty run the teaching and activities. Afterwards, the teachers get the opportunity to switch roles and practice teaching, running, and managing the same learning activities that they just experienced. The faculty experts are available to mentor, guide, and direct the teachers as they try out teaching and implementing novel biotechnology classroom activities. BiP focused on three critical aspects of successful professional development: time, personal experience, and connection. This mentored teaching and implementation practice system provided a robust professional development platform, where educators felt prepared and confident to run new biotechnology lab activities in their own classrooms.

Redesigning a face-to-face course to an asynchronous online format: a look at teaching pathophysiology with software that enhances student engagement

The COVID-19 pandemic, while disruptive and abrupt, provided instructors opportunities to redesign face-to-face (F2F) lecture courses to an online asynchronous delivery mode. Asynchronous course delivery is often synonymous with recorded lectures, discussion boards, and standardized assessments, yet this mode can be student-centered, include active learning, and engage students. Our undergraduate clinical pathophysiology course was redesigned with Understanding Your Physiology (Lt by ADInstruments) lessons with video case studies in place of a textbook. Most students (72.7%) found the Lt activities effective in helping them learn the material as well as a cost-effective replacement for a traditional textbook (50%). In addition, the course design focused on different types of Lt activities to deliver the course content in an interactive way. Specifically, students (82%) appreciated the opportunity to select an answer without penalty and make another selection if needed. The type of activity that students selected as most effective in helping them learn and understand the content was the ability to determine which statements were correct/incorrect (32%). Students enjoyed the video case studies of patients because they were directly related to course content, were visually engaging, and used real patients who told their personal story. All these factors contributed to the success in achieving the study's goals of redesigning a F2F lecture course to an asynchronous online format. The online course led to verifiable pedagogical outcomes of using the Lt platform to engage students in learning. This course was offered again in 2021, filled quickly, and will continue to be offered each year.

Genie: an interactive real-time simulation for teaching genetic drift

Neutral evolution is a fundamental concept in evolutionary biology but teaching this and other non-adaptive concepts is especially challenging. Here we present Genie, a browser-based educational tool that demonstrates population-genetic concepts such as genetic drift, population isolation, gene flow, and genetic mutation. Because it does not need to be downloaded and installed, Genie can scale to large groups of students and is useful for both in-person and online instruction. Genie was used to teach genetic drift to Evolution students at Arizona State University during Spring 2016 and Spring 2017. The effectiveness of Genie to teach key genetic drift concepts and misconceptions was assessed with the Genetic Drift Inventory developed by Price et al. (CBE Life Sci Educ 13(1):65-75, 2014). Overall, Genie performed comparably to that of traditional static methods across all evaluated classes. We have empirically demonstrated that Genie can be successfully integrated with traditional instruction to reduce misconceptions about genetic drift.

Perceived learning environment and academic motivation: An explanatory mixed methods study in a Molecular Biology and Genetics program

Lack of motivation of students is a major concern for the instructors and administration in universities, and it is in their interest to address these issues in the most effective and efficient way. The purpose of this explanatory sequential mixed-method study is to examine the predictive power of the learning environment on student academic motivation and to learn students' opinions on this issue. One hundred twenty students enrolled at the Molecular Biology and Genetics program completed the Academic Motivation and Learning Environment Perception scales, Quantitative findings indicated that only the activities dimension of the learning environment has a predictive power on academic motivation. Focus group interviews conducted with 16 students validated the quantitative findings. Students particularly drew attention to activities that foster active participation in the learning process, emphasizing the vitality of being engaged and of having real-life experiences in their learning environment.

Digital Tools in Behavior Change Support Education in Health and Other Students: A Systematic Review

Due to the increased prevalence of chronic diseases, behavior changes are integral to self-management. Healthcare and other professionals are expected to support these behavior changes, and therefore, undergraduate students should receive up-to-date and evidence-based training in this respect. Our work aims to review the outcomes of digital tools in behavior change support education. A secondary aim was to examine existing instruments to assess the effectiveness of these tools. A PIO (population/problem, intervention, outcome) research question led our literature search. The population was limited to students in nursing, sports sciences, and pharmacy; the interventions were limited to digital teaching tools; and the outcomes consisted of knowledge, motivation, and competencies. A systematic literature review was performed in the PubMed, CINAHL, MEDLINE, Web of Science, SAGE, Scopus, and Cochrane Library databases and by backward citation searching. We used PRISMA guidelines 2020 to depict the search process for relevant literature. Two authors evaluated included studies using the Mixed Methods Appraisal Tool (MMAT) independently. Using inclusion and exclusion criteria, we included 15 studies in the final analysis: six quantitative descriptive studies, two randomized studies, six mixed methods studies, and one qualitative study. According to the MMAT, all studies were suitable for further analysis in terms of quality. The studies resorted to various digital tools to improve students’ knowledge of behavior change techniques in individuals with chronic disease, leading to greater self-confidence, better cooperation, and practical experience and skills. The most common limitations that have been perceived for using these tools are time and space constraints.

A Comparison of Selected Items Found in Graduation Survey Instruments from MD and DO Schools. What It Reveals About Satisfaction with Career Choice

Selected items in graduation survey instruments from MD and DO schools were compared using a novel combined approach which revealed meaningful information about career choice. Although the student satisfaction with medical education had remained steady during the past decade for both MD and DO programs, the dissatisfaction with medical programs at time of graduation was different (p < 0.001). The level of unhappiness with career choice was also different (p < 0.001). An analysis of the Year Two Questionnaire, introduced in 2015 by the American Association of Medical Colleges, showed dissatisfaction with career choice in MD programs increased after graduation.

Development of a Tool to Assess Interrelated Experimental Design in Introductory Biology

Designing experiments and applying the process of science are core competencies for many introductory courses and course-based undergraduate research experiences (CUREs). However, experimental design is a complex process that challenges many introductory students. We describe the development of a tool to assess interrelated experimental design (TIED) in an introductory biology lab course. We describe the interrater reliability of the tool, its effectiveness in detecting variability and growth in experimental-design skills, and its adaptability for use in various contexts. The final tool contained five components, each with multiple criteria in the form of a checklist such that a high-quality response-in which students align the different components of their experimental design-satisfies all criteria. The tool showed excellent interrater reliability and captured the full range of introductory-student skill levels, with few students hitting the assessment ceiling or floor. The scoring tool detected growth in student skills from the beginning to the end of the semester, with significant differences between pre- and post-assessment scores for the Total Score and for the Data Collection and Observations component scores. This authentic assessment task and scoring tool provide meaningful feedback to instructors about the strengths, gaps, and growth in introductory students' experimental-design skills and can be scored reliably by multiple instructors. The TIED can also be adapted to a number of experimental-design prompts and learning objectives, and therefore can be useful for a variety of introductory courses and CUREs.

Using Action-Mapping to Design a Non-Majors Neuroeconomics Course to Teach First-Year Collegiate Skills

With its ability to address questions about how decisions are made and why, neuroeconomics is an excellent topic of study for college students at a variety of levels. In this paper we detail a neuroeconomics course specifically modified for undecided First-year students. One particularly daunting challenge was defining clear outcomes and delivering instruction at an appropriate level. We used Action-Mapping to achieve the course objectives of teaching collegiate skills applicable to any path of study or career while also delivering content suitable for credits in both a social science and natural science.

A Call for Programmatic Assessment of Undergraduate Students' Conceptual Understanding and Higher-Order Cognitive Skills

In response to empirical evidence and calls for change, individual undergraduate biology instructors are reforming their pedagogical practices. To assess the effectiveness of these reforms, many instructors use course-specific or skill-specific assessments (e.g., concept inventories). We commend our colleagues' noble efforts, yet we contend that this is only a starting point. In this Perspectives article, we argue that departments need to engage in reform and programmatic assessment to produce graduates who have both subject-matter knowledge and higher-order cognitive skills. We encourage biology education researchers to work collaboratively with content specialists to develop program-level assessments aimed at measuring students' conceptual understanding and higher-order cognitive skills, and we encourage departments to develop longitudinal plans for monitoring their students' development of these skills.

Define Your Goals Before You Design a CURE: A Call to Use Backward Design in Planning Course-Based Undergraduate Research Experiences

We recommend using backward design to develop course-based undergraduate research experiences (CUREs). The defining hallmark of CUREs is that students in a formal lab course explore research questions with unknown answers that are broadly relevant outside the course. Because CUREs lead to novel research findings, they represent a unique course design challenge, as the dual nature of these courses requires course designers to consider two distinct, but complementary, sets of goals for the CURE: 1) scientific discovery milestones (i.e., research goals) and 2) student learning in cognitive, psychomotor, and affective domains (i.e., pedagogical goals). As more undergraduate laboratory courses are re-imagined as CUREs, how do we thoughtfully design these courses to effectively meet both sets of goals? In this Perspectives article, we explore this question and outline recommendations for using backward design in CURE development.

Introductory Biology Students' Use of Enhanced Answer Keys and Reflection Questions to Engage in Metacognition and Enhance Understanding

Providing feedback to students as they learn to integrate individual concepts into complex systems is an important way to help them to develop robust understanding, but it is challenging in large, undergraduate classes for instructors to provide feedback that is frequent and directed enough to help individual students. Various scaffolds can be used to help students engage in self-regulated learning and generate internal feedback to improve their learning. This study examined the use of enhanced answer keys with added reflection questions and instruction as scaffolds for engaging undergraduate students in self-regulated learning within an introductory biology course. Study findings show that both the enhanced answer keys and reflection questions helped students to engage in metacognition and develop greater understanding of biological concepts. Further, students who received additional instruction on the use of the scaffolds changed how they used them and, by the end of the semester, were using the scaffolds in significantly different ways and showed significantly higher learning gains than students who did not receive the instruction. These findings provide evidence for the benefit of designing scaffolds within biology courses that will support students in engaging in metacognition and enhancing their understanding of biological concepts.

How to Assess Your CURE: A Practical Guide for Instructors of Course-Based Undergraduate Research Experiences

Integrating research experiences into undergraduate life sciences curricula in the form of course-based undergraduate research experiences (CUREs) can meet national calls for education reform by giving students the chance to "do science." In this article, we provide a step-by-step practical guide to help instructors assess their CUREs using best practices in assessment. We recommend that instructors first identify their anticipated CURE learning outcomes, then work to identify an assessment instrument that aligns to those learning outcomes and critically evaluate the results from their course assessment. To aid instructors in becoming aware of what instruments have been developed, we have also synthesized a table of "off-the-shelf" assessment instruments that instructors could use to assess their own CUREs. However, we acknowledge that each CURE is unique and instructors may expect specific learning outcomes that cannot be assessed using existing assessment instruments, so we recommend that instructors consider developing their own assessments that are tightly aligned to the context of their CURE.

American Society for Microbiology resources in support of an evidence-based approach to teaching microbiology

Numerous national reports have addressed the need for changing how science courses in higher education are taught, so that students develop a deeper understanding of critical concepts and the analytical and cognitive skills needed to address future challenges. This review presents some evidence-based approaches to curriculum development and teaching. Results from discipline-based education research indicate that it is critically important for educators to formulate learning goals, provide frequent and authentic assessments and actively engage students in their learning. Professional societies can play a role in helping to put these changes into practice. To this end, the American Society for Microbiology has developed a number of educational programs and resources, which are described here to encourage the implementation of student-centered learning in microbiology education.

Development of the Central Dogma Concept Inventory (CDCI) Assessment Tool

Scientific teaching requires scientifically constructed, field-tested instruments to accurately evaluate student thinking and gauge teacher effectiveness. We have developed a 23-question, multiple select-format assessment of student understanding of the essential concepts of the central dogma of molecular biology that is appropriate for all levels of undergraduate biology. Questions for the Central Dogma Concept Inventory (CDCI) tool were developed and iteratively revised based on student language and review by experts. The ability of the CDCI to discriminate between levels of understanding of the central dogma is supported by field testing (N= 54), and large-scale beta testing (N= 1733). Performance on the assessment increased with experience in biology; scores covered a broad range and showed no ceiling effect, even with senior biology majors, and pre/posttesting of a single class focused on the central dogma showed significant improvement. The multiple-select format reduces the chances of correct answers by random guessing, allows students at different levels to exhibit the extent of their knowledge, and provides deeper insight into the complexity of student thinking on each theme. To date, the CDCI is the first tool dedicated to measuring student thinking about the central dogma of molecular biology, and version 5 is ready to use.

Biology Education Research 2.0

Biology education research (BER) 2.0 has arrived, and is moving the BER community beyond showing that active learning works to understanding the individual and contextual factors that explain and influence biology teaching and learning.