Tetrominoes

Tetrominoes can be a fun math game. Kids who love playing dominoes usually will also love playing tetrominoes math games. Below is an explanation of what a tetromino is and some facts about tetrominoes.

What is a tetromino?

A tetromino is any tile composed of four connected cells from a square lattice.

How is a tetromino different from a domino?

A domino is a tile with two cells. Tetrominoes are tiles with 4 parts.

How many tetrominoes are there?

There are 19 tetrominoes. Each tetromino is a reflection or rotation of one of the five configurations. These five configurations of tetrominoes are called"

• Tetromino type I,
• Tetromino type 2,
• Tetromino type 3,
• Tetromino type 4, and 
• Tetromino type 5. Tetromino type V are called skew tetrominoes.