Learning Capital figures Unconsciously

Children can learn numbers unconsciously by the software……
The software has the function of Linking games, so children like it very much……
When children click a number,the software will read the number automatically，so children can learn numbers unconsciously……
The numbers's frequency of occurences depend on Ebbinghaus forgetting curve……
The pictures are big, children can click them very easily……
the software can admire the children……