At first glance, playing Tetris in a classroom might seem like pure procrastination. But teachers who allowed it often had good reason. Tetris is one of the most studied video games in cognitive science, and research has shown that regular play can:

: Try to keep your stack as level as possible. Leaving deep single-column gaps makes it difficult to clear lines unless you get a long "I" piece. Master Rotation

: Every 10 lines cleared typically increases the level, causing pieces to fall faster and increasing point values.