The unit plan attached will guide students through the rock cycle (igneous, sedimentary, and metamorphic rock formations), identification of common rocks of these types, and guide students into understanding the importance of brownstone. There are a lot of resources for this: "The Brownstone Quarries of Bayfield County" by Tom Gerstenberger (two parts), rock identification key, rock cycle, and (attached here as well) Survivor Buildings of the Great Chicago Fire. LSNERR has a rock collection kit and "You're a Rock!" Game kit.
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