Video of an Asian woman with long black hair in a red dress, sitting on a stool at a desk with a laptop, next to a green chalkboard with math equations.

A video shows a nude woman with long dark hair, sitting on a wooden chair, holding a pink smartphone. She has a medium build, and the background includes a whiteboard with mathematical equations.

Video of an Asian woman with long black hair and a white surgical mask, wearing a white blouse, sitting in an office chair. Background includes a monitor with Korean text, a calendar, and a whiteboard with mathematical equations.

Video of a classroom with two women in casual attire, one reading a book, the other facing a chalkboard with equations and a \"Critical Rate\" bar.

Video of a blonde woman with fair skin, wearing a tight white long-sleeve top and gray high-waisted pants, seated at a wooden table with an open book in front of her. Behind her, a white wall features a world map and a chart with mathematical symbols.

Video of a classroom with two female students facing a large green chalkboard, cluttered with mathematical formulas. The left side shows a woman breastfeeding a baby.

Video of a classroom with two Asian women wearing face masks and black dresses, one on a ladder, one seated at a cluttered desk, and a green chalkboard with equations.

Video of a classroom with a teacher in a black dress and students at desks, a large greenboard with math equations, and a purple \"crit rate\" bar.

Video of a classroom scene with a teacher in a mask and glasses, a student with long hair, and a blackboard with music notation, cluttered desk.