What an amazing tool to demonstrate student creativity while practicing and memorizing important vocabulary and grammar themes!
I used this dialogue exercise in every level I taught this year; Spanish 3 (sophomores) and Spanish 4 (juniors). You can adjust the expectations based on the classroom abilities. For example, for a class of students that experienced some learning difficulties, I waived the memorization portion and expanded their point values by adding an acting section. The more they act, the more points they get! Or you could add bonus points for making or bringing in props to add to their scene.
This assignment outlines what each pair or group needs to present and provides a rubric as well. This is a fabulous way of assessing their ability to use grammar, vocabulary and hear their pronunciation. Could even be used as a quiz grade!
I give students two full days in class to prepare and memorize their dialogue as I walk around and check grammar and make suggestions. On the third day they present in front of the class!