This is used in my undergraduate structural geology class.

Since this is a culminating activity, students must integrate much of what they have learned about structural geology to identify and interpret the unknown structure they are presented with.

Culminating activity on the last lab day of the semester.

The goal is to integrate their knowledge of rock description and interpretation of geologic structures.

Students must synthesize their knowledge and understanding of process in order to accurately describe and interpret the geologic structures. Many of the samples used have multiple structural elements (e.g., folds and cleavage).

Oral presentation of original ideas and interpretations.

The only materials needed for this activity are a suite of hand samples that contain structures that have been discussed/observed during the course and some music of instructors choice.

I usually do 2 or 3 rounds of interpretation. I choose a suite of samples for each round in advance and set up the first round of sample stations with the students outside of the classroom. When the activity begins the students enter the room and have 5-10 minutes to observe all of the samples independently without discussion among themselves. Then start the music and let them walk around the suite of samples. Stop the music and give the students 1-2 minutes to make some observations and interpretations of the sample they are in front of. Each student will then present their observations and interpretations to the class. Once finished, set up the second suite of samples and repeat the procedure.

Students present their observations and interpretations immediately and assessment occurs at the time of presentation. Accurate rock descriptions and valid and complete interpretation are required.