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Sketching is a valuable skill in engineering for representing information, developing design ideas, and communicating technical and abstract information. It is an important means of developing spatial abilities which are predictive of success in STEM fields. While existing spatial ability tests are predictive of engineering visualization skills, they do not allow students to develop drawing skills through spatial exercises. The Object Assembly Sketching test examines sketching skills with object assembly tasks using mental imagery and mental rotation. This study focuses on the development and pilot testing of a new sketching skills test using object assembly exercises. We piloted the test in two sections of an undergraduate mechanical engineering design course. Inter-rater reliability of two raters scoring students sketches on eight criteria was acceptable across exercises, but low across criteria. Students scored highest on Representation Accuracy, Scale, and Symmetry, and exhibited complex understanding of perspective sketching. We intend to revise the rubric to score for aesthetics and make instructions more precise.
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The utility of mechanical objects: Aiding students' learning of abstract and difficult engineering concepts
Abstract BackgroundUndergraduate students consistently struggle with mastering concepts related to thermodynamics. Prior work has shown that haptic technology and intensive hands‐on workshops help improve learning outcomes relative to traditional lecture‐based thermodynamics instruction. The current study takes a more feasible approach to improving thermal understanding by incorporating simple mechanical objects into individual problem‐solving exercises. Purpose/HypothesesThis study tests the impact of simple mechanical objects on learning outcomes (specifically, problem‐solving performance and conceptual understanding) for third‐year undergraduate engineering students in a thermodynamics course across a semester. Design/MethodDuring the semester, 119 engineering students in two sections of an undergraduate thermodynamics course completed three 15‐min, self‐guided problem‐solving tasks, one section without and the other with a simple and relevant physical object. Performance on the tasks and improvements in thermodynamics comprehension (measured via Thermal and Transport Concept Inventory scores) were compared between the two sections. ResultsStudents who had a simple, relevant object available to solve three thermodynamics problems consistently outperformed their counterparts without objects, although only to statistical significance when examining the simple effects for the third problem. At the end of the semester, students who had completed the tasks with the objects displayed significantly greater improvements in thermodynamics comprehension than their peers without the relevant object. Higher mechanical aptitude facilitated the beneficial effect of object availability on comprehension improvements. ConclusionFindings suggest that the incorporation of simple mechanical objects into active learning exercises in thermodynamics curricula could facilitate student learning in thermodynamics and potentially other abstract domains.
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- Award ID(s):
- 1763477
- PAR ID:
- 10536834
- Publisher / Repository:
- Wiley online library
- Date Published:
- Journal Name:
- Journal of Engineering Education
- Volume:
- 113
- Issue:
- 1
- ISSN:
- 1069-4730
- Page Range / eLocation ID:
- 124 to 142
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Sketching is a valuable skill in engineering for representing information, developing design ideas, and communicating technical and abstract information. It is an important means of developing spatial abilities which are predictive of success in STEM fields. While existing spatial ability tests are predictive of engineering visualization skills, they do not allow students to develop drawing skills through spatial exercises. The Object Assembly Sketching test examines sketching skills with object assembly tasks using mental imagery and mental rotation. This study focuses on the development and pilot testing of a new sketching skills test using object assembly exercises. We piloted the test in two sections of an undergraduate mechanical engineering design course. Inter-rater reliability of two raters scoring students sketches on eight criteria was acceptable across exercises, but low across criteria. Students scored highest on Representation Accuracy, Scale, and Symmetry, and exhibited complex understanding of perspective sketching. We intend to revise the rubric to score for aesthetics and make instructions more precise.more » « less
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Abstract BackgroundCivil engineers design systems that have the potential to impact existing oppressive societal conditions. Critical action—the ability to recognize and act against oppressive conditions—is an obligation for civil engineers committed to building a more just world. Purpose/HypothesisHistory reveals that civil engineers often do not take critical action and accrediting bodies (e.g., ABET) have responded by creating requirements to consider social factors and contexts. Considering these endeavors, we ask: To what extent do civil engineering students demonstrate critical action attitudes when prompted by engineering problem‐solving? In what ways does culturally relevant problem‐solving influence critical action attitudes? Design/MethodEmploying transformative action as a theoretical framework, we assessed students' responses to a design question on three levels that perpetuate or disrupt oppression (avoidant, destructive, and critical action). The empirical study used qualitative and quantitative analysis to examine survey responses of 375 civil engineering undergraduate students across 12 US universities. ResultsThe results showed that engineering students largely avoided discussing taking critical action, remaining focused on technical and nontechnical factors that evaded acknowledgement of sociopolitical factors. Nevertheless, when exposed to culturally relevant problem‐solving, students showed a statistically significant increase in both critical and destructive action responses. ConclusionsWe posit that students' exposure to culturally relevant problem‐solving can enhance students' critical action attitudes. The results call on the need for civil engineering educators to cultivate culturally relevant problem‐solving in civil engineering curriculum.more » « less
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- Free Publicly Accessible Full Text
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Accepted Manuscript
- Journal Article:
- https://doi.org/10.1002/jee.20573
