I can still remember the frustration of playing with building blocks as a young child. I wanted to build BIG, but it was impossible to make a skyscraper out of triangles, semicircles, cylinders, and small cubes.
His fater in the end made him a set of wooden square and rectangular cubes in different lengths. Many years later Singley recreated his favorite toy. He added numbers and increments to encourage mathematical and creative thinking.
The blocks, from scraps of basswood leftover from other products, come in recycled cotton storage bag and seem to me the perfect gift for kids.