This tutorial explains what makes an artistic movement and how to understand differences between artistic movements.
Source: Image of David, Michaelangelo Buonarotti, Photo by David Gaya, http://en.wikipedia.org/wiki/File:Michelangelos_David.jpg; Image of David, Gian Lorenzo Bernini, Public Domain, http://upload.wikimedia.org/wikipedia/commons/f/f1/David_Bernini_1623.jpg
A tendency or style in art involving the pursuit of a shared philosophy or goal, for a finite period of time.
Understanding works of art by consideration of their physical, or formal qualities. Formal analysis often involves comparison and contrast.
Looking at two works of art at the same time and thinking about how they are different and how they are similar.
The historical, social, political, religious, or geographical situation that informs the creation of works of art.