Err

Where science meets magic and fun meets education!

Maths Toys

Magic Cube
An elegant, transforming geometric puzzle. Based on the Yoshimoto Cube, which we used to sell about 20 years ago!
9.99
Non Transitive Dice - Set 1
These so-called 'Non Transitive Dice' (Magic Dice) demonstrate a probability that violates common sense and traps the unwary.
3.99
Non Transitive Dice - Set 2
Another variation on Non Transitive Dice, this time based on a set of three dice.
3.99
Sicherman Dice
An unusual pair of dice. One has sides 1,3,4,5,6,8. The other has sides 1,2,2,3,3,4. Martin Gardner reported on the discovery of these dice by a...
3.99
Educated Monkey
A really charming tin toy this one. We like it a lot!
13.99
Napiers Bones
'Napier's Bones' is an early calculating device that allowed the user to carry out multiplication and division.
17.99
Tangram
The tangram consists of seven flat shapes, called tans, which are put together to form shapes. This ancient puzzle originated in China, and was...
10.00