Picture students huddled around a 3D printer in a middle school classroom. They gaze at the object being printed, and exclamations of, "Where is that flag from?" "What does that symbol mean?" and "Oh; I didn't think of that!" can be heard. These examples of observation, curiosity, and critical thinking are the elusive…

New technologies are being developed every day. Many of these may not make it into the curriculum for technology and engineering students. For those that do, there may be quite a delay between the time the technology is introduced at an industrial scale and when the technology is developed at a relatively low cost and small scale needed to…

More and more schools are acquiring advanced manufacturing equipment. Activities that incorporate the use of this equipment for the purpose of teaching some academic content can either be designed or redesigned for other educational purposes as well. This article describes how the authors extended an activity that was initially designed to help…

While many students may struggle to make sense of a mathematical formula and its practical implications, they can benefit greatly from an intuitive visualization and the engineering application of the topic. Effective STEM programs create clear connections at least with two subject areas, which translates into an enhanced student learning…

3D printing is recognized as a collection of technologies known as rapid prototyping, solid freeform fabrication, and most commonly, additive manufacturing (AM). With these emerging technologies it is possible to print (but not limited to): architectural models, discontinued car-part foundry patterns, industry-wide prototypes, human tissues, the…

Health concerns from 3D printing were first documented by Stephens, Azimi, Orch, and Ramos (2013), who found that commercially available 3D printers were producing hazardous levels of ultrafine particles (UFPs) and volatile organic compounds (VOCs) when plastic materials were melted through the extruder. UFPs are particles less than 100 nanometers…

A handful of technological episodes: fire, wheel and axle, Industrial Revolution, Faraday's discovery of electromagnetic induction, the transistor, and the digital age, have historically altered humanity. We are now witnessing/participating in the next transformational technology: 3D printing. Although dating back nearly 30 years, the technology…