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COVID-19 necessitated online teaching (OT) during the second half of the spring 2020 semester. The perceptions of science, technology, engineering, and math (STEM) faculty of OT at a two-year (2-YI) and a four-year (4-YI) institution were examined during this sudden switchover. One group of educators had received flipped teaching (FT) training (FTEs, n = 23), whereas the other group was practicing traditional teaching (TTEs, n = 18). There were two cohorts of FTEs: cohort 1 were implementing FT for the third time in their classrooms, and cohort 2 had started for the first time. The survey results suggested that FTEs were more confident with OT than TTEs ( P < 0.05). It was interesting to note that 62.5% of the FTEs, whether they were from cohort 1 or cohort 2, chose an asynchronous approach, whereas 37.5% delivered synchronous OT during the sudden transition. It was found that FT experience helped cohort 1 adjust to OT compared with cohort 2. Overall, these results suggest that FTEs were confident and their resources for FT eased the transition to OT. NEW & NOTEWORTHY COVID-19 necessitated online teaching (OT). The perceptions of STEM faculty of OT at two-year and four-year institutions were examined. One group had received flipped teaching (FT) training (FTEs), whereas the others practiced traditional teaching (TTEs). Among two cohorts of FTEs, cohort 1 had been practicing FT but not cohort 2. FTEs were more confident with OT than TTEs. FT experience helped cohort 1 adjust to OT more than cohort 2. Overall, FT eased the transition to OT. 

In efforts to increase scientific literacy and enhance the preparation of learners to pursue careers in science, there are growing opportunities for students and teachers to engage in scientific research experiences, including course-based undergraduate research experiences (CUREs), undergraduate research experiences (UREs), and teacher research experiences (TREs). Prior literature reviews detail a variety of models, benefits, and challenges and call for the continued examination of program elements and associated impacts. This paper reports a comprehensive review of 307 papers published between 2007 and 2017 that include CURE, URE, and TRE programs, with a special focus on research experiences for K–12 teachers. A research-supported conceptual model of science research experiences was used to develop a coding scheme, including participant demographics, theoretical frameworks, methodology, and reported outcomes. We summarize recent reports on program impacts and identify gaps or misalignments between goals and measured outcomes. The field of biology was the predominant scientific disciplinary focus. Findings suggest a lack of studies explicitly targeting 1) participation and outcomes related to learners from underrepresented populations, 2) a theoretical framework that guides program design and analysis, and, for TREs, 3) methods for translation of research experiences into K–12 instructional practices, and 4) measurement of impact on K–12 instructional practices.