Books and Playthings Shop
Delightful, durable, and well-designed shapes puzzle for toddlers and beyond.
Versatiles tile the plane both periodically and aperiodically. They make multi-armed spirals.
This follow up to Which One Doesn't Belong? brings the same spirit of playful mathematical fun to counting that its predecessor brings to geometry.
21st Century Pattern Blocks introduce new shapes, new colors, new relationships, and new possibilities. I can’t wait to see what you all make with them. They play nicely with the original Pattern Blocks that are ubiquitous in American elementary classrooms, sharing the 1-inch side lengths of the classics.