Students identify the interior layers of the Earth and analyze a diagram.  In this Earth's layers lesson students create a model of the Earth's interior. 

In this mathematics instructional activity, students identify and solve who has the denser fur, either the Sumatran tiger or the sea otter. They calculate the number of hairs for each per inch or per meters and compare them.

Students watch a PowerPoint presentation about the layers of the rainforest. They create a paper rainforest in the classroom. They take notes from the presentation and write a paragraph to include in a layer book. They create a...