1. The document provides instructions for an activity where students practice distinguishing stress patterns in numbers ending in "-ty" and "-teen" through a role-play about finding student accommodation. 2. Students are divided into pairs and each given incomplete information about houses. They must ask their partner questions to fill in the missing details like address, rent, and travel time from school. 3. The activity demonstrates and emphasizes correcting pronunciation when confirming numbers, like "eighty" vs "eighteen". Students then complete the task in pairs while the teacher monitors stress in numbers.