Korean Plank

In circus terminology, Korean plank is another name for the teeterboard. The standard apparatus uses a flexible board balanced over a central fulcrum, so an item description saying it is anchored at one end does not describe the usual circus version. [Cirque du Soleil explanation](https://blog.cirquedusoleil.com/teeterboard-in-circus)

One or two acrobats land or jump onto one end of the board, using the board's flex and rebound to propel an acrobat at the opposite end into the air. Timing, body weight, and coordinated landing determine the height and direction of the launch. [FÉDÉC equipment guide](https://www.fedec.eu/en/file/file/481/inline/Circus%20Training%20Space%20and%20equipment%20guide.pdf)

The name refers to Korean jumping-board traditions, while the modern circus form is commonly called a teeterboard. Related board-launching traditions are also documented in Chinese acrobatics, but the circus apparatus is a specialized performance device. [Korean plank overview](https://ecolenationaledecirque.ca/en/circus-disciplines/)

Performers use it for somersaults, twists, continuous turns, and other aerial jumps. Circus schools describe it as a collective discipline involving two acrobats and a rocking board, rather than a general playground seesaw. [National Circus School](https://ecolenationaledecirque.ca/en/circus-disciplines/)