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Coal

Garry ChapmanGary Hodges

出版	Macmillan Education Australia, 2010
主題	Juvenile Nonfiction / Science & Nature / GeneralScience / General
ISBN	14202731169781420273113
URL	http://books.google.com.hk/books?id=LIKFRAAACAAJ&hl=&source=gbs_api

註釋

Upper primary students are introduced to coal as a commodity traded in the global marketplace in this fundamental book. It explains basic economic concepts and principles, such as markets and price indexes, depicts trends in world prices of coal, explores reasons for changes in world prices, and looks at current and future issues. It references websites for further research, and includes focus questions to assist teachers with inquiry-based learning units and to encourage students to think