Place one deck of cards on each table. Tell your pupils that the person sitting opposite them is going to be their partner for the class today. Thus North and South are partners, East and West are partners.
North turns the last card face up on the table.
Each player should now have thirteen cards. Instruct East to lead a card from his hand and place it face up on the table. In clockwise order everyone at the table now plays a card in the same suit. The highest card played wins the trick and one member of the partnership keeps all of the tricks won by the partnership. If you have no more of the suit led you may use a trump to win a trick.