The old classic in a convenient travel size! Slide rules have been teaching the basics of arithmetic for ages.
This one is made of robust FSC® 100%-certified wood and lets the young math whizzes practice maths, even on-the-go.
Brightly colored, movable beads in five rows teach the user about numerical proportions.
In this smaller format, this slide rule fits in every schoolbag!
Tamanho: 13 x 5 x 15 cm
Idade Recomendada: +4 anos