I believe that improvisation is an integral part of dance training and expression. It is beneficial for choreographers and dancers alike. Improv is one of the main techniques that was used in my composition classes in college; it helps the choreographer discover their own authentic movement, and that leads to original choreography. Authentic movement is how you move naturally, without thinking of particular steps or technique. But, I believe improv should be practiced in any style of dance, not just in contemporary or modern settings. Just because ballet technique is specific and classical choreography uses steps that you learn in class, does that mean it is not art? What about jazz or tap, where you have a sequence of learned movements or tricks? I think it is important to explore both: authentic movement, and sequencing steps of a different genre as improvisation.