The Violet Crown is a level 1 piece for beginning guitarists. Introduce the four repeating ostinatos by rote.  You may decide to share parts and/or scores with students as an introduction to music reading. Most frequently, students learn the individual parts as a whole group first. After everyone learns each part, divide them into three sections and play the piece several times, switching parts. If you had out parts, explain the multi-measure rests in the guitar 2 and 3 parts.