How do the vibrations of the different sounds compare for higher vs lower pitch notes?
- Do Now– Copy down today’s homework assignment in your planner. Get out your ISN and add to the Table of Contents- “Higher vs Lower Notes p.29” (Right Side); Head page 29 properly with “Higher vs Lower Notes- 11/27/17.”
- Turn and Talk– Summarize what our question was that we investigated last week. Then brainstorm: What are some musical instruments that we can look at more closely so see how they make different pitch sounds?
- Investigation- Set up data table on ISN p.29. Make observations of plucking a guitar string at different lengths, striking different bars on a xylophone, and the structures of a music box device when the handle is cranked. For each, pay attention to anything you notice about the structure of the instruments as they play different notes. Record your observations in the data table.
- Write Pair Share– “What patterns did you notice between how the instruments & music box made different pitched sounds? Do you think there are differences in the vibrations being made as different notes are being produced? Explain.” Write the answers to the questions on ISN p.29. Pair with your cooperative table group to share your responses and come to a consensus. Share your group responses with the class.
Complete questions on ISN p.29