Cut the index cards in half to provide you with 3-inch by 2 1/2-inch rectangles.
Select stickers that will appeal to your child. For example, using jungle animal stickers, construction vehicle stickers, cat stickers or special character stickers will often spark a child's interest and make the memory game more attractive. You must have two identical stickers to create each pair of memory cards.
Place one sticker in the center of each rectangle. You must make pairs of cards by placing the same sticker on two different index cards.
Continue making pairs of memory cards with identical stickers until you have as many memory card pairs as you desire.