Here's an example:
Teacher: Simón, Bebe el agua.
Teacher: (Thrusting her hands on her waist and wagging her finger at him angrily) ¡Simón! ¡Bebe el agua!
Teacher: (Slamming her fist on the table to emphasize each word) ¡Simón, TIENES QUE BEBER EL AGUA!
(Simón pretends to drink the water.)
Usually I repeat this little skit with that volunteer using the next slide as well to make sure everyone gets the pattern and then I call up a new student for each slide. They all think it's hilarious and I usually have to repeat so all the kids who want to participate can. Sometimes I call up 2 or 3 kids at a time and just modify what I say and make a big deal out of pronouncing tienEN que so they hear the difference. Below are some sample slides or you can purchase all 20 slides in my Teachers Pay Teachers store.
Let me know what you think about this lesson plan or add any other great ideas you may have below in the comment section!