I teach 6 classes so I took a general survey of my classes. The general categories were animals, plants, erosion, and rock layers.
Relevant question: Why are there layers in the walls? What kinds of rocks are there? How did the rocks get there?
Not relevant question: Do bears live in the canyon?I had to redirect their focus because some started asking questions about the animals in the canyon and became more interested in that than the rock formations and cliff wall layers. I continually asked questions similar to Why would sea fossils be found in the canyon walls were a fresh water river runs? Why are there different rock layers? Why are hard rock layers between soft rock layers? How does this affect erosion?
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