Place the remaining cards in a pile. If the opposite player has the card, it is passed to the caller. When the caller has a pair, it is laid down and the player gets another turn. The turn goes to the next player. The player that gets the majority of pairs, wins the game.
Concentration Make two copies of each picture.
Shuffle the 20 cards and place them face down on a flat surface in 4 rows and 5 columns. If the cards match, the pair is taken and the player gets another turn. If the cards are different, they are turned back over and the turn goes to the next player. The player that matches the most pictures, wins the game. These games will last longer on card stock paper.