208_Lect01_color - Geol 208 History of Earth the System Dr....

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Unformatted text preview: Geol 208 History of Earth the System Dr. Stewart Excerpt from commentaries exploring various educational issues produced by the Carnegie Foundation for the Advancement of Teaching <<http://www.carnegiefoundation.org>. George Kuh at Indiana University Bloomington, who directs the National Survey of Student Engagement (NSSE), says … “Someone ought to t ell students how unimportant good grades are once t hey l eave t he campus. Grade-obsessed students probably assume that high grades lead to bet ter jobs and more money, thi ngs they care about. In 1993, 57 percent of student s said that the chief benefit of a college education is in creased earning power, an d that n umber h as been g oing u p. Thirty-seven percent of students say they would drop o ut o f c ollege if t hey didn't t hi nk they were helping their jo b chances. • Go to Compass for Go Compass Syllabus and lecture slides. What is correlated with success is what is called "engagement," genuine involvement in courses and campus activities. Engagement leads to what's called "deep learning," or learning for understanding. That's very different from just memorizing stuff for the exam and then forgetting it. As Russ Edgerton of the Pew Forum on Undergraduate Learning notes, "What counts most is what students DO in college, not who they are, or where they go to college, or what their grades are.” On the board… • • • • Philosophy of Science Uniformitarianism Minerals Rocks 1 2 Review of Rocks and Minerals • Rocks are made of minerals… 3 Minerals are made of elements The elements are arranged in ordered pattern to build crystals. The structure and composition of minerals determine the properties of a mineral. Definition of a Mineral (on board) 4 Silica tetrahedra: Silicon ion surrounded by 4 oxygen Basic silicate mineral structures: See how the Sitetrahedra are arranged differently. 5 Rock Types (on board) 6 7 8 9 10 11 12 On the board… • Structure of Earth 13 14 Plate Tectonics Location of earthquakes Types of Plate Boundaries 15 The ~20 plates and their boundaries How Plate Tectonics operates Age of the Earth = 4.55 Ga 16 Age of the Universe = 13.75 Ga Food for thought Age of the Solar System = 4.55 Ga Relative age 17 18 ...
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