Heather Hasan

Wikipedia--the massive, ever-expanding, and entirely free online encyclopedia largely written, edited, and managed by volunteers--has transformed the way people seek information. Many teachers and librarians scorn it, due to its entries' frequent errors and biases. An even-handed and realistic approach to Wikipedia is presented, acknowledging serious flaws and shortcomings as a research tool, while also explaining the value in it. The book addresses how users can lodge complaints about a Wikipedia entry, how entries are corrected, and how one goes about writing an entry. Finally, the latest thinking of teachers, librarians, and school administrators regarding Wikipedia will be discussed, as will their suggestions for how best to use the online encyclopedia as a legitimate research tool.

It's an invaluable skill to be able to deal wisely with different types of non-life-threatening and less serious injuries. This book helps teens to treat cuts, scrapes, bites, stings, bumps, strains, and bruises when they occur. In addition, the book offers good advice for dealing with more serious injury situations such as fractures, burns, frostbite, fainting, hypothermia, and eye injuries--with a stress on getting medical attention from a qualified person as soon as possible.

This book explores the heavily used element manganese. The author discusses the structure of the manganese atom in clear and simple language, describing in detail the characteristics that give the element its unique qualities. In addition, readers learn why manganese is an essential nutrient in the human diet, as well as how and why the element is used in important industrial processes, especially steelmaking.

The Father of Mathematics