麻豆村

While doing homework and playing video games may appear to be at odds, for students in 鈥檚 upper-level course, Materials and Their Processing for Mechanical Engineers, they are one and the same.聽

Over the past seven years, Jayan has continued to develop and refine a course syllabus that leverages Minecraft, the popular online game, as a way to give students a closer look at concepts in materials science and engineering with a digital venue to carry out experiments, like chemical vapor deposition (CVD) polymerization, so that they can simultaneously observe the process at an atomic level and learn how to operate such equipment in a lab.

鈥淢inecraft was selected because it鈥檚 a game where people build using blocks, and in materials science we build entire objects using atoms. In the game, the blocks become surrogates for the atoms,鈥� said Jayan, an associate professor of .

鈥淚 think this is the very first time such a class existed in higher education 鈥� it鈥檚 definitely the first engineering course of its kind.鈥�

The perks of using Minecraft in the classroom range from matters of convenience to safety. For one thing, many aspects of the class were able to continue as planned during the COVID-19 pandemic thanks to the . Also, while access to labs may seem par for the course in an engineering curriculum, theory鈥揵ased classes like Materials and Their Processing rarely have a lab component, and entering these facilities even once requires substantial preparation. Safety training is paramount, but it often takes several months to learn about handling toxic chemicals and equipment properly. This timeline isn鈥檛 practical for a semester-long course. With a virtual lab, students can practice with greater peace of mind because if they make mistakes, the results play out on a computer screen and do not risk physical harm.

Jayan kick-started this project in 2016 with resources from the Donald L. and Rhonda Struminger Teaching Fellowship, which supports innovation in the classroom. When Jayan received the National Science Foundation鈥檚 CAREER Award the following year, she turned her focus to developing virtual lab equipment. The interns who worked on the course were instrumental to this process, including Miguel Brandao, a , and Takumi Natsume, a College of Fine Arts(opens in new window) alumnus who designed the analogous lab. The most important piece of equipment to include was the chemical vapor deposition machine.

鈥淭he actual tool sits in the basement of Scott Hall in the clean room housed within the ,鈥� explained Jayan. 鈥淚t can create layers of atoms into thin films/coatings that you use for electronics and batteries. Students run the virtual machine to apply the chemistry and physics they learn in class.鈥�

鈥淭he machine takes in a monomer gas, an initiator gas and a carrier gas,鈥� said Miguel Brandao, a mechanical engineering alumnus and former head teacher鈥檚 assistant for the course. 鈥淥nce they flow in through the chamber, the machine heats the gasses. This causes the electrons in the initiator molecules to break loose and attach to the monomer molecules, which then diffuse onto the surface of the object we are coating. This causes polymer chains to form.鈥�

CVD is an essential part of manufacturing microchips for computers and mobile phones, and the process was meticulously recreated in Minecraft, allowing students to observe the process step-by-step. Even routine albeit essential rituals of lab protocol, like putting on bunny suits and shoe covers, have been incorporated into the virtual experience.

When students conduct a polymer deposition experiment with the CVD machine, they know if it鈥檚 correct based on the color of the result. A properly grown nanolayered coating will turn pink, but if there鈥檚 a mistake, it crumbles like feta cheese.

While Jayan鈥檚 course is the first at 麻豆村 to use Minecraft, there鈥檚 less of a learning curve for students considering many of them grew up playing video games. Jayan takes a survey at the beginning of the semester to gauge how comfortable each group is with Minecraft and adjusts her lesson plans accordingly, adding or nixing tutorials based on feedback from students.

After fine-tuning the course over the last few years, Jayan has conducted her first case study (with researchers from the Eberly Center for Teaching Excellence and Educational Innovation(opens in new window)) to support the notion that Minecraft is not only an interesting pedagogical tool 鈥� it鈥檚 an effective one.

鈥淲e looked at student performance in exams,鈥� Jayan said of the preliminary research. 鈥淲e found statistically relevant improvements in student exam scores on topics requiring 3D spatial understanding and/or manipulation that is not possible on a two-dimensional book or paper or chalkboard.鈥�

Crystal structures, interatomic bonding, diffusion and property anisotropy are some of the engineering concepts that translate well to a 3D and interactive format. According to the case study, students scored higher on concepts that were covered in a Minecraft module compared with topics that were not taught in Minecraft.

Based on these results, Jayan would like to fortify the Minecraft server and establish a technical support team to accommodate a higher volume of users from across the university. Furthermore, Jayan hopes this data will inspire other schools at 麻豆村 to recognize the potential of Minecraft and other virtual tools for application in the classroom.

鈥淭his is still very legitimate, serious coursework that is supplemented by Minecraft鈥攏ot the other way around.鈥�

In recognition of this unique approach to teaching foundational engineering concepts, Jayan received the Teaching Innovation Award(opens in new window) at 麻豆村鈥檚 annual on April 18.