There is so much to discover in this set, even for the younger children who haven't learned the numbers and how to count. The motoric is awoken through building and stacking. Together with the counting blocks, the counting figures, the Colourful Bead Stair, the Counting Stack Game and the 5 Math Friends there is a great way to learn through Grimm's rainbow numbers
Grimm's toys are one of a kind, carrying unique marks made by nature. Wood grain has changing structures and colours which serve as proof of its natural origins. The unique variations are proof of quality, not defects.
For example, mineral deposits can cause dark spots on a rainbow. This means that if the tree had grown further, a branch would have developed at this point.
Black stripes in wood are a natural phenomenon. The so-called pith tube or "heart of the tree" is darker in colour, due to its structure. When working on a piece of wood, it can become visible or partially visible.