The kid must put three items from the smallest to the biggest. If the items are to the correct position a picture displayed as present for the kid. If the items are not to the correct position the kid must touch them again in order to try one more time. Also the first line is help if you can not make it.
The game contain things to compare from categories animals, numbers, clothes, balls, planets, ages, money, fruits, chairs, boats, cars etc.
This game can help the kids to understand the size of things that maybe don't know.