Collect objects that are familiar to the children, such as a comb, toothbrush, toy car, book, a block and spoon. Have the preschoolers examine the items and name each one. Ask them to close their eyes and then remove one item. Have the children open their eyes and guess which object is missing. Follow the same procedure with the remaining items.
Provide three paper coasters that are found in restaurants. Draw a design on the back of one coaster. Place all three on the table, printed side up. Lift up the coaster with the design to show the preschoolers where it is and then turn it over again. Slowly move the coasters around to rearrange their position. Ask the children to point to the coaster with the design. Turn it over to see if they are correct.
Place two or three plastic colored Easter eggs in a carton. Let the preschoolers see and names the colors and then close the lid. Ask the children to name the color of the eggs from memory. Open the lid to see how many colored eggs the children remembered. Continue playing the game changing the colors of the eggs each time.
Take a deck of playing cards and select the queen of hearts along with two other cards. Place the cards face up on the table. Show the preschoolers the queen of hearts. Turn all the cards face down and move them around. Ask the children to point to the card they think is the queen of hearts.
Make concentration games with different subject matter. Make two copies of each item or character on squares or index cards, all the same size. Color, cut and laminate the cards. Encourage the children to place all the cards face down on the table. Have the preschoolers turn over two cards at a time to find matching pairs. Free paint chip cards from paint stores make great cards for a game of color concentration.