MAKER: A sound introduction to engineering technology and product development

Abstract

This paper outlines the implementation of an active-learning experience that has been designed to introduce high school students to engineering technology and product development. In a threehour program, students are guided through the construction of an amplifier circuit and speaker cone assembly while the various engineering roles with product development are discussed. This multidisciplinary project touches on electrical, mechanical, and manufacturing roles in the development of a product. The project begins with an introduction to the principles of soundwaves and amplification. Electronic design of the speaker includes discussion of component selection, explaining the need for each element of the design. Throughout the discussion, students are guided though the assembly process which involves soldering electronic components to a prefabricated printed circuit board (PCB), winding wire around a 3D printed bobbin, and fastening the components to a wooden base. Upon completion of the assembly, students are able to play music from their phones and electronic devices through the amplified speaker assembly. This speaker project has been utilized through multiple sessions of Women in Engineering (WIE) summer camps involving high school female students. Surveys of students following the exercise indicate a high level of satisfaction with both the end product and the insights gained into engineering roles. Students walk away with a self-made product, and more importantly, a lasting impression of the accessibility of product development and engineering.