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Echocardiogram (Spanish)
This patient education program reviews the anatomy of the heart and heart diseases to explain how echocardiograms work, why they are needed, and what to expect during an echo. This is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
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The People's Physics Book
The authors' intent is to produce an alternative textbook, as one part of a multifaceted strategy to teach physics conceptually and mathematically. As a reference guide and problem text, it is carried easily and is especially helpful in preparation for the AP Physics B & C exams.
Author(s): James H. Dann Ph.D.,James J. Dann

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Virtual Worlds Almanac
This is a project to create a free, complete, up-to-date, and reliable guide to virtual worlds. So far we have 159 entries on virtual worlds written and edited by people from around the globe.
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DNAi Teacher Guide
In this guide, the information has been broken down into six sections: DNA Timeline, Code, Manipulation, Genome, Applications, Chronicle. Each section includes teacher pages, alignment with the national science education standards, student worksheets, answer sheets and templates.
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NLM: Environmental Health and Toxicology for Students and Educators
This website from the National Library of Medicine focuses on toxicology. The site features an interactive guide to potentially toxic substances and environmental health issues in everyday places, several college level tutorials covering the principles of toxicology, a household products database with potential health effects of chemicals for over 5,000 common household products, and more.
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Advanced Algebra II: Conceptual Explanations
This is the Conceptual Explanations part of Kenny Felder's course in Advanced Algebra II. It is intended for students to read on their own to refresh or clarify what they learned in class. This text is designed for use with the "Advanced Algebra II: Homework and Activities" and the "Advanced Algebra II: Teacher's Guide" collections (coming soon) to make up the entire course.
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A Teacher's Guide to Energy on Public Lands Intermediate Grades
This guide helps to teach students about the many energy resources on public lands in the United States using background information, graphic organizers, and hands-on activities.
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The Good and the Bad: Symbiotic Organisms from Selected Hosts
Symbiosis is defined as one organism living on, in, or with another organism. Three primary categories are mutualism (both organisms benefit), commensalism (commensal benefits and host not affected), and parasitism (parasite benefits and host harmed). Hands-on dissection of host animals provides examples ...
Author(s): Gayle Pittman Noblet,Michael Yabsley

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The Mammalian Masticatory Apparatus: An Introductory Comparative Exercise
This resource is a gives detailed protocols and instructional information for carrying out an undergraduate laboratory exercise in vertebrate biology and comparative anatomy, including student outlines and instructors notes.
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Biodiversity and Human Health: A Guide for Policymakers
Produced by the Center for Biodiversity and Conservation, this guide summarizes the consequences of biodiversity loss for human health. The guide examines threats to global supplies of food and fresh water, exposure to formerly rare diseases and opportunistic infections, and loss of important sources of medicines.
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A Seasonal Guide to New York City's Invertebrates
This engaging illustrated guide gives an introduction to the local invertebrates one can see in various habitats of New York City and offers suggestions for where and when to search for them, along with information on how best to protect them. The Seasonal Guide is being distributed at no charge throughout the City to parks, nature centers, and other organizations involved in public education and conservation.
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Kids' Guide to the Birds of Central Park
An illustrated guide to birds commonly found in Central Park, and an introduction to birding for young naturalists. The guide also includes information on where to go in Central Park to see birds in various habitats: freshwater, woodlands, and open areas.
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Remote Sensing Tutorials
The Remote Sensing tutorials are designed to illustrate topics discussed in the Remote Sensing guide. While several tutorials are in the works, only the following tutorial is available at the moment: Image Exploration using OpenEV.
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Fossil Halls
The American Museum of Natural History is home to the world's largest collection of vertebrate fossils, totaling nearly one million specimens. This Web site offers visitors a virtual visit to the Museum's famed Fossil Halls. It features seven sections along with a brief introduction, a Teacher's Guide, and information about the Museum's Division of Paleontology.
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Welcome to Mars
This kid-friendly Web site reports on the Red Planet and how our knowledge of it was greatly enhanced by the Mars Pathfinder lander. It has the following sections: Mars Gazette has a collection of serious and humorous pieces about the planet and exploratory missions to it. Activities includes the online Martian Math and three offline activities, Egg Drop, Mapping Unknown Surfaces, and Balloon Rockets. Red Guide to Mars is a handbook that covers the planet's features and history, as well as our s
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Discovering Information Systems: An Exploratory Approach

Authors: 
Jean-Paul Van Belle Jane Nash & Mike Eccles