12.490 Advanced Igneous Petrology (MIT)
Advanced Igneous Petrology covers the history of and recent developments in the study of igneous rocks. Students review the chemistry and structure of igneous rock-forming minerals and proceed to study how these minerals occur and interact in igneous rocks. The course focuses on igneous processes and how we have learned about them through studying a number of significant sites worldwide.
Author(s): Grove, Timothy

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

Burke, Paine and Wollstonecraft
Events in France did much to revive the fortunes of the reform movement after it had declined in the mid 1780s and hostile reactions to the course the revolution was taking stimulated the rapid growth of militant loyalism as public opinion turned against the radicals. The French revolution did produce some changes: * movement spread further down the social scale * was influential in a wider geographical area, not merely confined to the capital. * some radicals were pursuing a new Li
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The Arctic's Sneaky Fox (Part 2)
Snow Fox (Part 2)- (podcast) by Anna Shi (15:00)

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Steven Pinker on Thinking About Our Society
Steven Pinker, author of The Better Angels of Our Nature, delivers a lecture entitled Thinking About Our Society: Why Violence Has Declined. Pinker (Psychology - Harvard University) explores the essence of human nature and what lies behind the statistically unmistakable reduction in violence over the past few centuries.
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Poisson Process - Part 1 - Khan Academy
Introduction to Poisson Processes and the Poisson Distribution. (11:01)
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Why Does Helium Change Your Voice?
Why does sucking on helium make your voice sound funny? See if this question can stump Dr. Charlotte Grayson. Helium is a colorless and odorless gas, and lighter than air.  It changes your voice by altering the environment where sounds are formed. Run time 01:27.
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Basic English Grammar -- Singular and Plural Nouns - ESL
Singular and Plural nouns Singular Noun Definition: When a noun means one only, it is said to be singular. Examples: boy, girl, book, church, box. Plural Noun Definition: When a noun means more than one, it is said to be plural. Examples: boys, girls, books, churches (05:43)

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Facts of Congress - The First Amendment
This provides a brief explanation of the origin of the First Amendment and its meaning. Appropriate for use in classroom, middle school students and above. (01:03)
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Greetings for Special Occasions- Beginner Spanish
This is a video introducing polite and friendly phrases in Spanish that can be used to greet others on special occasions such as Christmas and Easter. The phrases are shown both in English and in Spanish and the Spanish pronunciation is repeated several times.
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Polydron: Pyramids Set
Learn how to creatively use the Polydron® Pyramids Set to make geometric models. This video provides tips for teachers, tutors, and parents of home-schooleded children. (10:38)
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Domestic Animals
In this video they discuss what domestic animals are and gives some examples of domestic animals.  Some domestic animals they show are cats, dogs, horses, cows, and pigs.
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Confederate vs. Union Soldiers
Where the soldiers came from, a third were immigrants to the country, and the differences between the two in terms of what they were fighting for and how they lived. Good insights that bring a human touch to understanding the Civil War. 2:38
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Electoral College Explained.
A few 20somethings are in a meeting and one of them explains the Electoral College.

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#244: The dragon's tango: China's growing engagement in Latin America

International relations scholar Assoc Prof Kevin P. Gallagher examines the growing influence in Latin America of a resource-hungry China, and the benefits and risks resulting from Chinese economic activity in the region. Presented by Eric van Bemmel.

Author(s): up-close@unimelb.edu.au (University of Melbourne)

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Population and Resource Distribution
Becky Forristal teaches seventh–grade economics at Rockwood Valley
Middle School, 20 miles outside St. Louis, Missouri. Her lesson focuses
on a population simulation that explores world economics, demonstrating the inequalities in land, food, energy, and wealth distribution in the world today. Using a global map on the classroom floor, students are able to visualize how resources are distributed in both wealthy and under–developed nations of the world.

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Reading Across The Curriculum Workshop 13
Gage Reeve’s class is learning new vocabulary in a lesson on global
warming. Students also use an idea tree to record main ideas and
supporting details and write their own questions to be answered after
reading the nonfiction text.

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Summarizing Nonfiction, Workshop 16
Eleanor Demont’s fifth-grade class completes a mini-lesson using summarization as a comprehension strategy for reading nonfiction texts. Students examine the importance of differentiating what is interesting from what is important in a social studies unit on Ancient Egypt.
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Choosing Words Strategically Workshop 11
Caroline Cockman’s third grade class is learning how to revise
biographies using transitions and more descriptive nouns. A whole-group
exercise models the revision process, and small group instruction
focuses on students who need extra help in writing.

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Music and the Brain: Depression and Creativity Symposium
Kay Redfield Jamison, professor of psychiatry and behavioral sciences and co-director of the Johns Hopkins Mood Disorders Center at the Johns
Hopkins University School of Medicine, convened a discussion of the
effects of depression on creativity. Joining Jamison were two
distinguished colleagues from the fields of neurology and
neuropsychiatry, Dr. Terence Ketter and Dr. Peter Whybrow. The Music and the Brain series is co-sponsored by the Library's Music Division and

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The Greater Than, Less Than Game with Subtraction
Learn how to play and teach the greater than, less than game for practicing arithmetic with expert teaching tips in this kids math games video clip.  The game is well explained, and shows on the screen exactly what to do. This is a great resource to improve math instruction and mastery in the classroom and at home. (1:45)
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