**Can you figure out the rules of the game from its solution?**

*Rectangles* connects arithmetic and geometry. For students who have already started multiplication and division this puzzle makes factoring tangible. For students who are just learning about multiplication, the puzzle provides a concrete introduction to multiplication as repeated addition.

- downloadable puzzles for everyone from about grade 4 and up

- classroom demonstration for about grade 4 and up

- downloadable puzzles for (approximately) grades 2-4

- classroom demonstration for (about) grades 2 – 4

Find more puzzles for younger students at Math in English, where they are called *Shikaku*.

Find many more puzzles in different sizes at Simon Tatham’s site.

Here are 30 pages worth of Rectangles puzzles generated from Simon Tatham’s code!