Procedure: 

1. After reviewing the target language for the mockup store, explain a little about your country's currency and review numbers while attaching the currency to the number, 1 dollar, 2 pounds, 3 pesos, etc.
2. Then, explain the store dialogue, or adjust the dialogue to your liking:
   • Storekeeper: "Hello."
   • Customer: "Hello, how much?" <pointing to an item wanted>
   • S: <looking on the back of the item> "3 pesos."
   • C: "Yes, please," or "No, thank you."
   • S: <if customer says 'yes'> 3 pesos, please.
   • C: "Okay." <giving the storekeeper the money>
   • S: "Thank you." <while receiving the money>
   • C: "Thank you." <while receiving the item>
   • S: "You're welcome." <when the customer is leaving the store.>
3. Practice this dialogue with all the students until the students understand.
4. Have the HRT chooses the shopkeepers, give them each a variety of objects and money.  Then have them set up their shops in various locations throughout the classroom.    
5. Give each of the shoppers money and have them blow their cash visiting the different shops and repeating the dialogue with the shopkeepers.
6. Students continue shopping until they run out of money, at which point they come to you or the HRT and explain what they bought.
7. Take their items, refill their money supply and send them back out.

Variations: