Key learning points

1. Four connected squares make a tetromino, and five connected squares make a pentomino.
2. The five possible tetrominoes can be explored, discussed and compared.
3. The 12 possible pentominoes can be explored, discussed and compared.
4. Tetrominoes and pentominoes can be rotated and flipped.
5. A particular tetromino or pentomino can be transformed into another by moving some of the squares.

Keywords

• Arrangement - The way something is organised.

• Tetromino - An arrangement of four connected squares.

• Pentomino - An arrangement of four connected squares.

• Rotate - To spin around.

• Flip - To reflect in a mirror line.

Common misconception