Education is a perpetually evolving field, especially with the rapid advancement of technology and the upsurge of the globalization phenomenon (Crawford and Kirby 2008). Students need to become familiar with social interactions that they will eventually encounter in the future. However, in order for students to effectively participate in successful global collaborations, their teachers also need to be adequately prepared. One way is for teachers to leverage existing online technologies--such as the learning management system, Google Classroom (GC)--that now make it possible to connect students and classrooms around the world. Many teachers already use GC as a means to manage their classroom learning locally, assign tasks and objectives to their students, provide feedback for student work, or communicate with parents and other teachers within and between local schools, but they may not be aware that it can be used as a global collaborative tool. This article serves two purposes: (1) it suggests a way to connect classrooms globally using GC to execute a global collaborative STEM (science, technology, engineering, and math) education project, and (2) it presents a reflective account of teacher mentorship as this project was executed.