This week with the older classes, I brought out a tuning fork. I demonstrated how it creates a tone from vibrating after you strike it. The particular one I used at first vibrated at 440 times a second. I then showed them other sizes of tuning forks and had them predict what sounds they would make after striking them. They discovered that the bigger ones vibrated less per second and therefore created a lower tone. We looked diagrams of how we can distinguish those different vibrations and tones with tiny parts such as the ear drum, hammer and anvil - which are then interpreted by our brain. I then sang, "If I Had a Hammer" to raise their awareness of the upcoming Martin Luther King Day. Music, Science and Social Studies all addressed in twenty minutes.
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September 2018
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