Find the best deal on music. Small groups create playlists of music and determine the cost based on different pricing structures. They determine whether the pricing structure represents a direct or inverse variation relationship by graphing it. Team members then determine the amount of money left if purchasing different numbers of songs.

Concepts

inverse variation, direct variation

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Additional Tags

math

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Instructional Ideas

• Research several music sites to find price deals
• Have the class brainstorm other real-world examples of direct and inverse variation

Classroom Considerations

• Individuals should be comfortable determining whether a relationship is direct or inverse

Pros

• Provides a rubric to score students' tasks
• Contains suggestions for what the teacher should be doing during the task

Cons

• Incorrectly identifies an inverse variation as a linear equation