To learn more about the subject, to be able to put into practice the knowledge acquired in the classroom. 

in this scene, she goes to the laundry and a woman takes her place, we can identify the past simple (was and were). Her friend will help her and together they will learn something.

Friends: Ross Teaches Rachel How to Do Laundry

friends-ross-teaches-rachel-how-to-do-laundry

Let's do English ESL general grammar practice. To learn more about the subject, to be able to put into practice the knowledge acquired in the classroom. 