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Despite the recent emphasis on the importance of K-12 students engaging in engineering content and practices, there has been little research done about how teachers learn engineering practices through teacher workshops and even less on how they utilize those experiences to teach engineering in their classes. Using methods of interactional ethnography, we analyzed data from an online teacher workshop in which elementary teachers engineered solutions to a multi-criteria problem in which balancing tradeoffs was a key practice. We found that teachers tended to focus on one criterion rather than both and lacked strategies to consider balancing these tradeoffs. We also found that a second iteration afforded all groups to demonstrate learning through improvement. Implications are discussed related to the importance of a focus on balancing tradeoffs in teacher learning and on pedagogy of engineering projects.
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A balancing act: Elementary teachers and their students balancing tradeoffs in engineering design projects
This fundamental research in pre-college education engineering study investigates the ways in which elementary school students and their teacher balance the tradeoffs in engineering design. STEM education reforms promote the engagement of K-12 students in the epistemic practices of disciplinary experts to teach content.1,2,3 This emphasis on practices is a paradigm shift that requires both extensive professional development and research to learn about the ways in which students and teacher learn about and participate in these practices. Balancing tradeoffs is an important practice in engineering but most often in classroom curricula it is embedded in the concept of iteration1,4; however, improving a design is not always the same as balancing trade-offs.1 Optimizing a multivariate problem requires students to engage in a number of engineering practices, like considering multiple solution, making tradeoffs between criteria and constraints, applying math and science knowledge to problem solving, constructing models, making evidence-based decisions, and assessing the implications of solutions5. The ways in which teachers and students collectively balance these tradeoffs in a design has been understudied1. Our primary research questions are, “How do teachers and students make decisions about making tradeoffs between criteria and constraints” and “How do experiences in teacher workshops affect the ways they implement engineering projects in their classes.” We take an ethnographic perspective to investigate these phenomena, and collected video data, field notes, student journals, and semi-structured interviews of eight elementary teachers in a workshop and similar data from two of the workshop teachers’ classes as they implemented the curriculum they learned in the workshop. Our analyses focus on the disciplinary practices teachers and students use to make decisions for balancing tradeoffs, how they are supported (or impeded) by teachers, and how they justify these decisions. Similarly, we compared two of the teachers wearing their “student hat” in the workshop as well as their “teacher hat” in the classroom5. Our analyses suggest three significant findings. First, teachers and students tended to focus on one criterion (e.g. cost, performance) and had few discussions about trying to minimize cost and maximize performance. Second, curriculum design significantly impacts the choices students make. Using two examples, we will show the impact of weighting criteria differently on the design strategies teachers and students make. Last, we noted most of the feedback given was related to managing classroom activity rather than supporting students’ designs. Implications of this study are relevant to both engineering educators and engineering curriculum developers.
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- Award ID(s):
- 1930777
- PAR ID:
- 10354814
- Date Published:
- Journal Name:
- ASEE annual conference proceedings
- ISSN:
- 1524-4857
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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N/A (Ed.)Teachers can play critical roles in challenging or reinscribing dominant narratives about what counts as STEM, who is seen within STEM disciplines, and how these disciplines should be taught. However, teachers have often experienced STEM in limited ways in their own education and are thereby provided with few resources for re-imagining these disciplines. While teacher educators have designed learning environments that engage teachers in new forms of disciplinary activities, there have been few accounts that describe how teachers make connections between these experiences and dominant narratives that impact their own and their students’ learning. In this study, I report on the experiences of Alma, a white, working-class, female elementary teacher in an online graduate certificate program for K-12 engineering educators. Through her engagement in engineering design in the program, Alma appropriated—transformed and made her own—discourse of the engineering design process in ways that trouble some of the narratives that restrict her, her family, and her students in STEM and in school. Alma’s experiences emphasize the need to consider not just what teachers learn about disciplinary tools and discourses, but how they transform these for their own purposes and contexts.more » « less
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Abstract BackgroundElementary educators are increasingly asked to teach engineering design, motivating study of how they learn to teach this discipline. In particular, there is a need to examine how teachers reason about pedagogical situations and dilemmas in engineering—how they draw on their disciplinary understandings, attention to students' thinking, and pedagogical practices to support students' learning. Purpose/HypothesisThe purpose of our qualitative study was to examine elementary teachers' pedagogical reasoning in an online graduate program. We asked: What stances do teachers take toward learning and teaching engineering design? How do these stances shift over the course of the program? Design/MethodWe identified two teachers, Alma and Margaret, who exhibited productive shifts in their pedagogical reasoning during the program. Drawing on interviews and videos of their teaching, we developed case studies characterizing their stances toward teaching and learning engineering. ResultsAlma shifted in her reasoning about teaching the design process, from treating it as linear, discrete steps to recognizing the dynamic, overlapping nature of design practices. Similarly, Margaret shifted in how she reasoned about failure and iteration, recognizing the need to help students analyze unexpected design performances to learn from and iterate on their designs. For both teachers, these shifts were dynamic and nonlinear, reflecting both context‐sensitivity and growing stability in their reasoning. ConclusionsEngineering teacher educators should provide opportunities for teachers to reason about the specific pedagogical dilemmas in engineering and consider how teachers integrate disciplinary understandings with attention to students' reasoning and actions and pedagogical practices.more » « less
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Abstract. We investigated teacher learning within a professional development (PD) workshop series on computational thinking (CT) for elementary-level mentor teachers. The purpose of the PD was to prepare mentor teachers to support preservice teachers in integrating CT into their classroom practice, toward the broader goal of advancing CT for all in the early grades. We examined the ways in which participants collaboratively built on existing professional knowledge as they engaged in professional learning activities designed to introduce CT and related pedagogies for elementary science education. Our data sources were field notes, artifacts, drawings, written reflections, and focus group interviews. We describe how participants developed new understandings of CT integration and made connections to existing professional knowledge of their students, their curriculum, and their school contexts. We discuss implications for teacher learning and PD design relevant to CT, and make recommendations for future research.more » « less
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