This article showcases STEM as an interdisciplinary field in which the disciplines strengthen and support each other (not as separate science, technology, engineering, and mathematics disciplines). The authors focus on an open-ended, complex problem-water quality-as the primary teaching and learning task. The participants, middle school female students (aged 9-15 years), interacted in an informal educational setting (i.e., Girl Scouts) on a research project investigating river quality following the river's restoration. The community, including Girl Scout participants, leaders, parents, university faculty, graduate students, and others, utilized an action research (AR) approach when interacting with the participants. Methods such as observational field notes, focus groups, and collected artifacts were commonly employed. The authors describe the history of STEM and AR leading to authentic science research projects through eight engineering skills/practices (incorporating science, technology, and mathematics) and showcase participant interactions, implementation, and community engagement in the STEM water quality river project. Findings indicate that informal engineering based projects can serve as opportunities for participants to connect with integrated STEM. Implications include the need for engaging participants in informal authentic science to support traditional school STEM learning and encouraging community engagement in integrated STEM to support traditional K-12 classroom instruction.

This article explores the vertical alignment of two high school classes, biology and chemistry, around the core concept of biodiesel fuel production. High school teachers and university faculty members investigated biodiesel as it relates to societal impact through a National Science Foundation Research Experience for Teachers. Using an action research approach, two high school teachers created and implemented biodiesel lessons in both biology (biochemistry algae focus) and chemistry (transesterification focus). This article describes the extent to which this integrated STEM biodiesel lesson, which is vertically aligned in one high school, affected the students' skills and attitudes in relation to STEM subjects. The lesson plans used and the student outcomes based on the biodiesel activities are provided on the basis of a year's implementation. Overall, student skill sets and attitudes improved based on pre−posttest data and classroom indicators, such as student questions. One implication of this work includes a stronger integrated STEM vertical curriculum that could be implemented in any biology and chemistry program, especially in advanced placement (AP) classes such as AP chemistry, to encourage and engage students in discovery, inquiry-based learning, problem-based learning, engineering design, and creating experiments that have a real-world applicability such as those with socio-scientific issues. The notion that science disciplines are an interconnected web of concepts is highlighted. This contribution is part of a special issue on teaching introductory chemistry in the context of the advanced placement chemistry course redesign.

Twenty-three pre-collegiate educators of elementary students (ages 5-10 years) and secondary students (ages 11-18 years) attended a two-week science, technology, engineering, and mathematics (STEM) astronomy focused professional development in the summer of 2015 with activities focused on authentic science experiences, inquiry, and partnership building. ‘Authentic’ in this research refers to scientific skills and are defined. The study explores the authentic science education experience of the pre-collegiate educators, detailing the components of authentic science as seen through a social constructionism lens. Using qualitative and quantitative methods, the researchers analyzed the successes and challenges of pre-collegiate science and mathematics educators when immersed in STEM and astronomy authentic science practices, the educators’ perceptions before and after the authentic science practices, and the educators’ performance on pre to post content tests during the authentic science practices. Findings show that the educators were initially engaged, then disengaged, and then finally re-engaged with the authentic experience. Qualitative responses are shared, as are the significant results of the quantitative pre to post content learning scores of the educators. Conclusions include the necessity for PD team delivery of detailed explanations to the participants - before, during, and after – for the entire authentic science experience and partnership building processes. Furthermore, expert structure and support is vital for participant research question generation, data collection, and data analysis (successes, failures, and reattempts). Overall, in order to include authentic science in pre-collegiate classrooms, elementary and secondary educators need experience, instruction, scaffolding, and continued support with the STEM processes. Key words: authentic science, astronomy outreach, inquiry activities, partnership building, professional development, STEM education.

There is a clear call for pre-collegiate students in the United States to become literate in computer science (CS) concepts and practices through integrated, authentic experiences and instruction. Yet, a majority of in-service and pre-service pre-collegiate teachers (instructing children aged five to 18) lack the fundamental skills and self-efficacy to adequately and effectively integrate CS into existing curricula. In this study, 30 pre-collegiate teachers who represent a wide band of experience, grade-levels, and prior CS familiarity participated in a 16-day professional development (PD) course to enhance their content knowledge and self-efficacy in integrating CS into existing lessons and curricula. Using both qualitative and quantitative methodology, a social constructivist approach guided the researchers in the development of the PD, as well as the data collection and analysis on teacher content knowledge and perceptions through a mixed-methods study. Ultimately, participants were introduced to CS concepts and practices through NetLogo, which is a popular multi-agent simulator. The results show that although the pre-collegiate teachers adopted CS instruction, the CS implementation within their curricula was limited to the activities and scope of the PD with few adaptations and minimal systemic change in implementation behaviors.

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