The development of basic mathematical skills is the main focus of this section. Through maths games and success tasks, which are so popular with children at this age, their number sense and quantity sense are shaped. They can understand mathematical concepts and relationships, e.g. the meaning behind more/less, the measurement of quantities and the significance of volume. The great thing about preschool /kindergarten development activities is that children develop not only imperceptibly, while playing, but also enrich their skills and abilities. Our method builds on this unique opportunity, where children can learn about friendship, openness to change, environmental protection and literacy in the same story.