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Documentary-style editorial photograph of a middle-aged male math teacher seated at a [wooden desk], leaning slightly forward as he grades student exam papers with his right hand. He has [wavy dark brown hair and fair skin], wearing a [muted blue crew-neck sweater over a checked collared shirt]. His face is censored with a [large centered rectangular blur block]. On the desk are [two tall stacks of papers and folders] on the left and right, an open test sheet in front of him, [three loose pens in blue, red, and transparent blue] in the foreground, a [black zippered pencil case] on the front left, and a small black cap near center-right. In the background, a large [dark green chalkboard] spans the entire wall, filled with handwritten [French mathematics notes and formulas in white chalk, including a function definition, square root expression, limit notation, and five numbered tasks]. Medium shot, landscape composition, teacher centered, shallow depth of field, soft natural indoor classroom lighting.