Talk to your child about what you are planning to buy at the market and explain that you need help finding those things at the store. When you reach the aisle where an item is located, hand your child the coupon and ask her to find the item. When it’s found, ask how she knew it was the right item (“It has the picture of the fish on it,” “I matched the letters on the coupon,” “I recognized the name,” etc.).
Keep your child in your sight at all times. Talk about classification and the areas of the store different items might be found.