This lesson plan aims to teach 9th grade students about classical music. The objectives are for students to be able to define classical music, describe its characteristics, and relate changes in music to changes in society. Students will learn that classical music originated when tastes shifted towards simpler, more memorable melodies. Through a game where students listen to music and identify if it is classical or not, the lesson introduces the systems thinking tool of surfacing and testing assumptions about classical music. Students will then compare and contrast classical music to contemporary music using a Venn diagram. Their understanding will be evaluated based on their presentation of the Venn diagram.