Books and Playthings Shop
Printed on high-quality paper and suitable for framing is this poster showing more than 300 solutions to the ...
Before 2023, the question, “Is there a single tile that only tiles the plane non-periodically?” had no known ...
All babies are math babies.
When your adorable math baby is wearing this hexagon onesie, the two of you will ...
Sixty-four wooden tiles of six different types that combine for endless beautiful creations.