a professor lectures to students in a classroom with equations and charts on a blackboard

Name: a professor lectures to students in a classroom with equations and charts on a blackboard
Uploaded: 2025-07-22T14:32:55.000Z
Duration: 11 s
Channel: Anna Tolipova
Description: Descarga este vídeo premium de A professor lectures to students in a classroom with equations and charts on a blackboard y explora millones de vídeos de stock profesionales en Freepik.