Abstract: Research has been conducted to describe the ability to know the concept of numbering at children group A through the Dakon’s Game modification. The research method is to use quasi experimental research with non-equivalent pre-test post-test control group design. Population and samples are group A kindergartens in Sidoarjo. Data collection techniques using observation sheets. The results showed that there was an influence on the Dakon’s game modification to the ability to know the concept of numbering at group A.