The mat 'Jumping Numbers' is about math and consists of 2 parts: In the middle of the mat: a street with houses and house numbers 1 to 25. The houses with an odd number are on one side of the street and the even numbers on the other side. The 5-structure (and 10-structure) is clearly present because these houses are the same. The edge of the mat is a ditch with stones, this is a game for 2 children. Each child starts on an arrow and throws the dice. If you land on flowers, you can go ahead. At the frog you jump one step back. The child who overtakes the other child wins the game.