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.

• getting-started
• 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!

• puzzles