This image depicts a classroom in Chaikovsky, Russia, during what appears to be a mathematics lesson

This image depicts a classroom in Chaikovsky, Russia, during what appears to be a mathematics lesson. A female individual, presumably a teacher, is positioned centrally in the frame, viewed from the back. She has dark hair tied in a ponytail and is wearing a light yellow textured short-sleeved top and dark pants, holding a piece of white chalk in her right hand while facing a series of three dark green blackboards. The blackboards are covered with handwritten mathematical equations, inequalities, and geometric diagrams in white chalk. The leftmost board primarily displays inequalities involving x² and constants (e.g., "x² + 50 < 0", "x² - 50 ≥ 0"), along with corresponding number lines indicating solutions involving square roots of 50. The middle board contains arithmetic calculations and sketches of triangles and parabolas (e.g., "20-16=2", "12-10/2=1"). The rightmost board shows more complex inequalities, including fractional expressions like "x ≥ 36/x", and steps leading to solutions such as "x = 6" and "x = -6". A yellow circular magnet is visible on the top edge of the middle blackboard. The classroom features white walls and a white ceiling. Two linear fluorescent light fixtures are mounted overhead on white brackets, with a white rectangular ventilation grate visible on the ceiling. A small, black security camera is positioned in the upper right corner of the room, near a square, light green wall clock displaying approximately 11:55. Below the middle blackboard is a small wooden shelf with metal hooks. A large, green fern plant in a white pot is situated on the floor to the left of the blackboards. In the foreground, a light brown wooden desk, viewed from a student's perspective, holds stacks of white papers, a blue folder propped up by two dark rectangular objects, a red object (possibly a notebook or cover), and a mathematics textbook titled "МАТЕМАТИКА" (MATEMATIKA) with a yellow spine. A small, light-colored plush toy rests next to the textbook. The scene captures an active teaching moment, emphasizing algebraic and geometric concepts within a standard classroom setting.