This image depicts a classroom in Stara Zagora, Bulgaria

This image depicts a classroom in Stara Zagora, Bulgaria. The room has light-colored walls and is illuminated by ceiling-mounted fluorescent lights. Multiple white-topped desks with light brown wooden chairs are arranged within the space. On the left side of the room, a large interactive display exhibits a graph of a sine wave, accompanied by mathematical equations and Cyrillic text including "амплитуда" (amplitude) and "период" (period). A framed picture of a blue and yellow macaw is mounted above this display. Adjacent to the display on the right is a white whiteboard. A wooden door is visible in the background on the right. Further right, partially visible, is a piece of grey industrial-style equipment. Three individuals are present. In the immediate foreground on the right, a male teenager stands, facing left and slightly toward the camera. He wears a dark, textured jacket, dark pants, and a dark backpack, exhibiting a neutral expression while looking downward. In the midground, center-left, another male teenager stands, facing and looking directly into the camera. He is dressed in a dark hooded sweatshirt and dark pants, holding a light-colored smartphone in his left hand. To his left, a female teenager is seated at a desk with her back to the camera, observing the interactive display. She has long, wavy dark brown hair and wears a light gray top over a dark jacket. A laptop is positioned on the desk in front of the seated female.