Abstract
This paper reports on research investigating six middle school teachers without engineering degrees as they taught an engineering unit on the engineering design process. Videotaped classroom sessions and teacher interviews were analyzed to understand the subject matter and pedagogical content knowledge the teachers used and developed as they introduced the eight steps of the engineering design process (from content standards for the state of Massachusetts, USA). The teachers demonstrated wide-ranging knowledge of the engineering design process, and this paper describes two of the steps the teachers showed a more sophisticated understanding—constructing a prototype and redesigning. Examples from the teachers illustrate strengths that can be built upon as well as some areas for further development.
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Appendix
Appendix
Pre-Interview
Educational background
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Please describe your educational background including your undergraduate and graduate studies.
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Please describe the science courses you took in college. How did you do in these courses?
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Please describe the math courses you took in college. How did you do in these courses?
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Please describe any engineering courses you took in college OR any courses that may have involved engineering-like projects or experiences. How did you do in these courses or experiences?
Experiences
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Please describe any experiences related to math, science, or engineering you have had in your life. This may include construction projects, summer jobs, previous professions, etc.
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Are you tech savvy? For example, do you use computers often, do you set up your own household electronics, do you understand mechanical gadgets and how they work?
Mid-Interview
Review the topics/concepts covered in the previous lessons
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What did you feel were the most important concepts for the students to come away understanding from lesson x?
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If you were not using LEGO for the spatula design challenge, what material(s) would you choose to use instead, and why?
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What made the strongest design so strong?
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Do you believe the students understand what makes for a strong spatula? If you were going to teach this lesson again, what would you do the same and what would you do different?
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Was there anything that surprised you while teaching these concepts?
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Did you develop any strategies or methods for teaching these concepts that you didn’t have before? Did you develop new PCK? Did you develop new SMK?
Review a teaching incidence or situation with the teacher
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How did you know to say that? Describe the subject matter knowledge you called upon in this situation.
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Why did you say x, y, and z? Would you have said something different to another student?
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Why did you choose that real-world example?
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What was the outcome of this situation? Were you satisfied with the outcome? What do you believe the student learned in this situation? What did you learn from this interaction? What knowledge do you think may have helped you create a more successful outcome?
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Did you take any new pedagogical content knowledge away from this interaction?
Final interview
Review the important topics/concepts covered in the curriculum and subject matter knowledge development
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What topics do you believe you taught well? Why? Did you already know the concepts before the training?
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What topics did you not teach as well? Why?
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What were some of the challenges in teaching these concepts to your students?
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What SMK did you learn or reinforce for yourself?
Pedagogical content knowledge used and developed
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What did you learn about your students regarding their understanding of engineering, math or science (emphasis on engineering and engineering design process)?
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What strategies did you use to teach this unit? Were there strategies that were different from your math or science classroom teaching?
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What were some of the challenges of teaching this curriculum?
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What did the students struggle with in this curriculum? What specific concepts or ideas did the students struggle with?
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Hynes, M.M. Middle-school teachers’ understanding and teaching of the engineering design process: a look at subject matter and pedagogical content knowledge. Int J Technol Des Educ 22, 345–360 (2012). https://doi.org/10.1007/s10798-010-9142-4
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DOI: https://doi.org/10.1007/s10798-010-9142-4