The AT&T Learning Network Community Guide
In an effort to help individuals and communities realize the importance of the Internet, AT&T created the Learning Network Community Guide. The guide consists of many different resources, and it serves a variety of purposes. Two Internet introductions, separated into student and teacher versions, can be used to maximize use of Web tools, newsgroups, and other online services. Other sections of the site suggest ways to raise community awareness of information technology (IT) and facilitate access
A prodigious author of computer science books presents several introductions to computers and computer-related technologies at this site. Eight different guides are available, which cover topics including digital data, motherboard logic, and the computer input/ output interface. The text and accompanying illustrations are not overly technical in nature, and are therefore suitable for almost any audience. A section on digital imaging is under construction as of March 2003; it has information on p
Although US plans for missile defense have somewhat been taken out of the spotlight, the Missile Defense Agency homepage offers relatively current news and press releases. Perhaps the most interesting features of the Web site, from a scientific perspective, are the introduction and fact sheets that describe how missile defense works. Several documents are available for download, which address engineering and technical issues associated with the system's design. They discuss the basic operation a
This news service from SecurityFocus is an excellent resource to learn about important computer security warnings and alerts. The Web site keeps track of many widely used software applications, while reporting known vulnerabilities as they are found. Viruses and worms are another key topic that receives significant attention. Several columns offer expert advice and tips to efficiently use and understand software for different platforms. Government security is covered in the news section, discuss
Ozone depletion interactive lab
What is the process by which CFCs destroy ozone? This informational piece, part of an interactive laboratory series for grades 8-12, explores the destruction of the ozone layer by chlorofluorocarbons. Here students view a four-step animation that shows how ultraviolet light breaks chlorine free from a CFC molecule. The chlorine then destroys an ozone molecule. Additional steps show how the process can be continuous. Copyright 2005 Eisenhower National Clearinghouse
Desk Top Stars
This module designed for middle school students uses simple, fun experiments to introduce some tools and concepts of astronomers. Students are asked to consider how astronomers answer questions like: How old is the Universe? How far away is a galaxy? What are stars made of? The exercise includes working with a simple spectrometer. This unit may be easily modified for other students.
Soil as Living Skin
In this two-minute radio program, a soil scientist introduces listeners to reasons why soil is crucial to the planet. The scientist lists functions of soil that include nutrient cycling and water filtration, and he also uses living skin as an analogy for soil. The program, part of the Pulse of the Planet radio show, is available here in text and audio formats. Copyright 2005 Eisenhower National Clearinghouse
Thinking involving very large and very small quantities
Intuitively a million is a lot more like a billion than ten is like one hundred, because our intuition has some grasp of ten and one hundred, but we have little grasp of what millions and billions involve. Fortunately, there is often a way to make intelligent decisions involving big quantities. Use arithmetic! Typically we don't need more than multiplication and division to put things into terms we can deal with. If we are unwilling or unable to do the calculations, we should at least recog
Microbes : too smart for antibiotics?
This lesson packet builds on a peer-reviewed article about antibiotic resistance in microorganisms. The packet contains discussion questions about the article, instructions for an activity about hand washing that uses fake, fluorescent 'germs,' and two handouts of ideas for student activities. The first handout is appropriate for general biology students, and the second is designed for advanced, AP, or first-year undergraduate students. In many of the activities, students create a product, such
National Gardening Association
This is the homepage of the National Gardening Association, a nonprofit organization established to help gardeners, and to help people through gardening. The Web site contains loads of garden-related information, including over 2,000 articles, 30,000 FAQs, seed swap programs, a zone finder, pest control library, and much more. The site does advertise some retail items, but all information in this extensive online resource is available free of charge.
Maximize the area of a rectangle with a given perimeter. Vary the perimeter, base, and height of the rectangle and examine changes to the graph of the area.
Examine the seasonal migration of snow cover
In this Earth science animation, middle and high school students observe the changes in snow cover on Mount Rainier over the course of one year. Accompanying text explains what a snow line is and instructs students to locate the snow line by examining the animation frame by frame. The animation is equipped with control buttons that allow students to play, pause, scroll, and step through the video. Students can click a button labeled 'Where on Earth?' to open a U.S. map showing the location of Mo
Positive Linear Function Machine
This activity allows the user to explore simple linear functions; the function is determined by looking for patterns in the outputs.
Science Friday Online!
This is an online companion to Science Friday, a weekly science, technology, and environment news radio program. The site includes articles about the weekly program, video, and blog links. A podcast of the program is also available.
Blue Planet: Frozen Seas
In this lesson, students research the behavioral and physical adaptations of an animal from the Arctic or Antarctic; and create a poster and make a presentation about the animal.
The science of light : funhouse mirrors background
This page briefly describes and illustrates the laws of reflection. It includes a short section on pedagogy and it relates the content to standards.
Tortoise and Hare Race
users step through the tortoise and hare race, based on Zeno's paradox, to learn about the multiplication of fractions and about convergence of an infinite sequence of numbers.
Quick take on the wide, wide world of geometry
As the social studies, art, and music classes in the middle school widen students horizons, some of your students may become fascinated with the art, costumes, and customs of other peoples in this and other times. The NCTM Principles and Standards calls for middle school students to be able to recognize and apply geometric ideas and relationships in areas outside the mathematics classroom, such as art, science, and everyday life.
Crazy Choices Game
Three players play games of chance using dice, cards, spinners or coin tosses, to compare theoretical and experimental probabilities. Instructor guidelines and Help are included.
Observe an animation showing evidence of the carbon cycle
In this visual resource about the carbon cycle, students are presented with an animation and accompanying text that focus on carbon and plants. The text addresses how plants fit into the larger carbon cycle, including how carbon enters and leaves the biosphere, and it explains what students are viewing in the animation. The animation shows false color images on a flat map of the world. When the viewer clicks on the image (or the play button), the animation plays, and color patterns reveal change