@Chocolate Starfish: This is a worksheet that I used with Grade 3, Unit 5. I basically had them do an activity where one person acted as a clerk in a store, and the other person was a customer.
Grade 3 lesson 6 is just one of those lessons. Taking basic response comments and making a lesson out of it. Ready? Go. PS, does anybody else feel like this is the Apocalypse chapter?
Grade 3 Lesson 6 part 1 - The river rises