This image depicts the interior of a modern university lecture hall in Porto, Portugal, observed from a mid-level seating position

This image depicts the interior of a modern university lecture hall in Porto, Portugal, observed from a mid-level seating position. The hall features tiered seating with orange-brown fabric-covered backs and gray metal frames. At the front, a large, dark rectangular projection screen is centered above a lower white whiteboard or screen. Overhead, a black mounting apparatus, likely for a projector or camera, hangs from the light-colored ceiling. Numerous individuals, predominantly young adults, occupy the tiered seats, mostly facing the front. A female with dark hair, wearing a white top, stands near the front, slightly right of center, addressing the audience. On the far left, a male in a dark jacket is visible entering or exiting through an open doorway. In the immediate foreground, a black "BIMBA Y LOLA" pencil case is partially unzipped on a desk, revealing a pink object inside. Below it, an open notebook displays handwritten "Algebra" equations. Directly in front of the camera's position, the back of a student's head in a light beige hoodie is visible. To their right, a student wears a yellow t-shirt with "SAILING MASTER" text. Further right, a male student with curly brown hair is turned to his left, showing his profile as he looks towards another student. A dark laptop is open on the desk in front of the student in the yellow shirt. A student to the left of the beige hoodie holds a smartphone.