The video shows a classroom scene during a lecture. The classroom features rows of light blue desks and chairs arranged for students. In front of the classroom is a teacher standing behind a podium, pointing at a projection screen that displays text and diagrams related to structural engineering calculations for a rectangular section beam. The text on the screen is in English. Students are seated at the desks, some are looking at their phones and tablets, appearing to take photos or notes of the material on the screen. The classroom has white tile flooring and white walls with several ceiling fans and rectangular ceiling lights. A whiteboard with handwritten equations is visible beside the projection screen.