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Large-scale, scientist-led, participatory science (citizen science) projects often engage participants who are primarily white, wealthy, and well-educated. Calls to diversify contributory projects are increasingly common, but little research has evaluated the efficacy of suggested strategies for diversification. We engaged participants in Crowd the Tap through facilitator organizations like historically Black colleges and universities (HBCUs), predominantly white institutions, high school science classrooms, and corporate volunteer programs. Crowd the Tap is a contributory project focused on identifying and addressing lead (Pb) contamination in household drinking water in the United States. We investigated how participant diversity with respects to race, ethnicity, and homeownership (a proxy for income) differed between participation facilitated through a partner organization and unfacilitated participation in which participants came to the project independently. We were also interested in which facilitators were most effective at increasing participant diversity. White and wealthy participants were overrepresented in unfacilitated participation. Facilitation helped increase engagement of people of color, especially Black and lower-income households. High schools were particularly effective at engaging Hispanic or Latinx participants, and HBCUs were important for engaging Black households. Ultimately, our results suggest that engagement through facilitator organizations may be an effective means of engaging diverse participants in large-scale projects. Our results have important implications for the field of participatory science as we seek to identify evidence-based strategies for diversifying project participants. 

There is an alarming shortage of qualified STEM teachers in American PK-12 schools. The COVID-19 pandemic may exacerbate this crisis and consequently affect who participates in future STEM innovation. At three points during the pandemic, we surveyed early career teachers who were supported by the National Science Foundation as they began teaching in high-needs school districts. Teachers who felt connected to their professional and academic communities reported intentions to remain in the profession, while those who felt isolated reported intentions of leaving. It is critical for STEM academics to maintain professional relationships with graduates who pursue STEM teaching professions after graduation. 

Abstract As the pandemic began to disrupt school systems in March 2020, teachers were expected to quickly modify their instructional approaches. We recruited science, technology, engineering, and mathematics teachers who were recipients of National Science Foundation scholarships based on their high‐quality academic record and commitment to working in high‐needs school districts to participate in a longitudinal survey study. Participants (n = 153) graduated from universities or colleges in the Mountain West or western region of the Midwest. Through a series of three surveys administered throughout 2020 to all participants and follow‐up focus group interviews with a subset (n = 42) in early 2021, we examined participants' perceptions and beliefs about the educational system's response to COVID‐19. Participants perceived that the continuation of instructional delivery was the highest priority and that their professional needs were the lowest priority. Most participants believed the actions taken by school districts and schools to be negative or neutral. Participants were categorized by years of experience (preservice 0, novice 1–3, early career 4–5, and master 6+) to compare their perceptions of success and intentions to continue teaching. Participants perceived that their level of success increased with years of professional experience prior to the pandemic, but all participants reported feeling less successful during the pandemic. Despite participants' negative beliefs about the school response and perceived low levels of success, they intended to remain in the classroom short‐term but not necessarily long term. We recommend that teacher educators and administrators (1) help teachers develop their personal knowledge and skills for use in the classroom, especially considering the national shortage of science (and STEM, broadly) teachers in high‐needs districts and (2) develop proactive plans for responding to unexpected crises on large scales, as well as those limited to a particular region.