The video shows the interior of a classroom during the daytime, likely in Varna, Bulgaria. A male teacher, who is bald and wearing a dark jacket, is standing at the front of the room, writing on a whiteboard with a marker. The whiteboard contains handwritten text in Cyrillic, with "Термодинамика" (Thermodynamics) visible at the top, suggesting a science or engineering lesson. Several students are seated at wooden desks with blue chairs. In the foreground, a student is seen from behind, wearing a dark blue and grey camouflage-patterned puffer jacket with a grey backpack visible on the back of their chair or lap. Other students are visible further back; one on the right is wearing a light blue jacket and another on the left is partially visible near a window. The classroom has light-colored walls, a wooden floor, and a window with white blinds on the left. Fluorescent light fixtures are mounted on the ceiling, and a white wall clock is positioned above the whiteboard. A security camera is visible in the top left corner of the room. The overall atmosphere appears to be a typical class session.