We were studying subdividing and composing simple rhythms in our mind, not on paper. Knowing the vocabulary of 'quarter note', 'eighth note', 'half note rest' and so on is fundamental if we want to communicate to fellow musicians.
To show how deep this understanding goes, I I was showing Carter Beauford's amazing drumming technique. Yes, he is a wizard. Although there are videos that focus more on him soloing, I love how the group listens so well to each other at the beginning of this song.