The star of the show is ratios. The informative resource explains how to transpose music using ratios. Individuals transpose the song "Twinkle, Twinkle" in the activity by applying their ratio skills. The activity challenges class members to transpose the song up and down to different keys.

Concepts

frequency, music notes, ratios, proportions, proportional reasoning, scale

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Additional Tags

math

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Instructional Ideas

• Invite the music teacher to come talk about changing keys
• Provide a mini-lesson about frequencies measured in Hertz

Classroom Considerations

• Pupils should be comfortable multiplying decimals
• One part of the Math at the Core: Ratios playlist
  

Pros

• Provides an answer key showing the transposed frequencies
• Includes a table that associates frequencies with musical notes

Cons

• None

Common Core

6.RP.A.1 6.RP.A.2 7.RP.A.1 7.RP.A.2.a 7.RP.A.2.c