By Schylling

Reviewed for Fifth Grade, 2012

Tetris Nano Electronic Carabiner

There’s something about this retro wonder that’s irresistible -- stick one in a stocking for an anytime brainteaser. It’s small enough to fit in the palm of a child’s hand, but sports the same falling Tetriminos you may remember from your own childhood. Players react and rotate as they fall from the sky, aiming to get a perfect fit and create a horizontal line with no gaps. But the better kids get, the faster they fall! Simple, visual spatial practice for think-fast fun. (Schylling, $8.28)