Numberblocks Wooden Building Blocks Activity SetLearning Resources Numberblocks Wooden Building Blocks Activity Set Watch early years maths skills stack up with this Numberblocks building activity set! This set has Numberblocks One to Five in every shape each character can make. As children use the Numberblocks polyominoes to build towers, create new shapes and do the 20 building challenges shown on the activity cards, they build their problem solving and mathematical reasoning skills through fun,