Everything's going wrong in the classroom; the teacher's frustration level is so high that she's ready to walk out and try her hand at any other profession besides teaching. Just as things reach a peak, in steps the coach, who says, "Pause classroom!" To the teacher experiencing this scenario, it certainly seemed real. The classroom is, however, a computer-simulated one called TLE TeachLivE, and it's the product of research conducted at the University of Central Florida. Teachers walk into a room that looks just like a middle school classroom, including props, whiteboards, and students. However, the lab is a virtual setting--the classroom is projected on a screen--and the students are avatars, with personalities similar to their real-life student counterparts. The researchers found that four 10-minute simulator sessions on a specific teaching practice can change at least one crucial teaching behavior. Note the authors, "We believe this virtual learning environment is a disruptive technology for professional development."