Take an empty kleenex box and place the penguin on the front. The hole in the top of the box is where the children will feed the penguin. Copy, cut, and laminate the 16 fish cards. During group time pass out the fish cards. Say to the children, "Everyone with a red fish come up and feed the penguin". Continue playing until there are no longer any fish left.
This is also a fun way to play a memory game. Place the fish cards face down on the floor. Have a child turn two cards over, if they match they get to feed the fish to the penguin.