🎬 A clapboard, also known as a slate or clapperboard, is a device used in filmmaking to mark the start of a scene or take. It consists of a hinged board with a wooden stick that can be clapped shut, creating a distinctive sound and visual cue for synchronizing audio and video recordings. The clapboard typically displays important information such as the production title, scene number, and take number, making it an essential tool for organizing and editing footage during post-production.