Activity of mathematics

The game is called
" The surprise bag ".
The teacher will show two bags,  in one of them several balls will be with numbers and  in other one a few cards with signs of mathematical operations.



The children and girls will place in row and will play for shifts. The player will have to take two balls of a bag and a card of other one.
The player will have to realize the operation that he has touched and other players will do the same thing.