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Simple materials allow for a hands-on (and foot-on!) practice with natural selection and normal distribution. :)
Students practice with the concepts of a continuum and a normal distribution, and connect it to polygenic traits and natural selection. They practice with types of natural selection that act on a continuum, including stabilizing, directional, and disruptive selection. Students measure and graph shoe data to create a distribution for their class.
MS-LS 1-2, 4-4, 4-6
HS-LS 2-6, 4-2, 4-3