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We explored undergraduate students' visual literacy by asking them to draw and interpret images of chromosomes and found that most students held incorrect or incomplete conceptions about chromosome structure and function. These findings stress the importance of teaching visual literacy skills in biology courses. 

In an effort to increase community college (CC) biology education research (BER), an NSF-funded network called CC Bio INSITES (Community College Biology Instructor Network to Support Inquiry into Teaching and Education Scholarship; INSITES for short) was developed to provide intellectual, resource, and social support for CC faculty (CCF) to conduct BER. To investigate the efficacy of this network, we asked about the barriers and supports INSITES CCF have experienced when conducting BER and how specific INSITES supports have mitigated barriers and provided support for network members to engage in BER. We conducted interviews and focus groups with 17 network participants, representing 15 different CCs. Qualitative thematic analysis revealed six main barriers that INSITES CCF experience when conducting BER: time constraints, knowledge, incentives or rewards, administrative or peer support, infrastructure, and stigma or misconceptions associated with being CCF. Participants indicated how the supports provided by INSITES helped to mitigate each barrier. Social support was especially critical for CCF to develop a sense of belonging to the CC BER community, though that did not extend to the broader BER community. We describe how these supports function to support BER and recommend four actions for future support of CCF conducting BER. 

Limited access to undergraduate research experiences for science, technology, engineering, and mathematics students has led to creation of classroom-based opportunities for students to participate in authentic science. Revising laboratory courses to engage students in the practices of science has been shown to have many benefits for students. However, the instructor’s role in successful implementation of authentic-inquiry curricula requires further investigation. Previous work has demonstrated that navigating an instructional role within the open-ended format of an inquiry curriculum is challenging for instructors. Little is known about effective strategies for supporting students in authentic scientific practices. To address this challenge, we investigated instructors with prior experience teaching Authentic Inquiry through Modeling in Biology (AIM-Bio) in order to reveal strategies that are likely to help students succeed in this context. We took a unique approach that uncovered how instructors supported students and how they intended to support students in the scientific practices of modeling and experimental design. Analysis included in vivo recordings of instructor–student interactions paired with instructor interviews over the course of a semester. Findings detail the ways in which instructors flexibly responded to students through their in-the-moment actions. Additionally, the instructor intentions provided crucial explanatory power to explain the rationale behind teaching choices made. 

What goes into faculty decisions to adopt a classroom intervention that closes achievement gaps? We present a theoretical model for understanding possible resistance to and support for implementing and sustaining a diversity-enhancing classroom intervention. We propose, examine, and refine a “diversity interventions—resistance to action” model with four key inputs that help explain faculty’s decision to implement (or not) an evidence-based intervention: 1) notice that underrepresentation is a problem, 2) interpret underrepresentation as needing immediate action, 3) assume responsibility, and 4) know how to help. Using an embedded mixed-methods design, we worked with a sample of 40 biology faculty from across the United States who participated in in-depth, semistructured, qualitative interviews and surveys. Survey results offer initial support for the model, showing that the inputs are associated with faculty’s perceived value of and implementation intentions for a diversity-enhancing classroom intervention. Findings from qualitative narratives provide rich contextual information that illuminates how faculty think about diversity and classroom interventions. The diversity interventions—resistance to action model highlights the explicit role of faculty as systemic gatekeepers in field-wide efforts to diversify biology education, and findings point to strategies for overcoming different aspects of faculty resistance in order to scale up diversity-enhancing classroom interventions. 

To investigate patterns of gender-based performance gaps, we conducted a meta-analysis of published studies and unpublished data collected across 169 undergraduate biology and chemistry courses. While we did not detect an overall gender gap in performance, heterogeneity analyses suggested further analysis was warranted, so we investigated whether attributes of the learning environment impacted performance disparities on the basis of gender. Several factors moderated performance differences, including class size, assessment type, and pedagogy. Specifically, we found evidence that larger classes, reliance on exams, and undisrupted, traditional lecture were associated with lower grades for women. We discuss our results in the context of natural science courses and conclude by making recommendations for instructional practices and future research to promote gender equity.