users click to build dot plots of data and view how the mean, median, and mode change as numbers are added to the plot.
Levers : Raising the Moai on Easter Island
In this video segment adapted from NOVA, a team of archaeologists and engineers explores different uses of the lever by recreating the engineering feats of the ancient Easter Island peoples.
Observe an animation of a comet's passage through the solar system
With these animations, Earth science students can follow the 76-year orbit of Halley's Comet. The introduction describes the highly elliptical orbit of comets and states that comet Halley will return to the solar system in the year 2061. Students are instructed to choose between a wide-angle view of the comet's entire orbit and a view of the comet's path through the inner solar system. The wide-angle view shows how the comet's velocity increases as it approaches the sun and decreases as it trave
CICLOPS : The Cassini Imaging Page
The CICLOPS site contains a flight log, updates, and images from the Cassini mission to the outer planets. NASA is releasing new pictures almost every day on the Cassini Imaging Central Laboratory Operations (CICLOPS) web site.
Like any museum, this website called the Mathematics Museum provides some interesting visuals and explanations of various aspects of its subject, in this case mathematics. For example, the Fractal 3D Gallery includes video footage of 3D fractals and an FAQ section that provides some basic information on fractals. The Kodawari house includes some interesting math games and instruction for children as well as more advanced mathematics. Visitors can browse images created using Mathematica software
Observe an animation of volcanic islands forming over a hot spot
In this Earth science animation, middle and high school students see how the Hawaiian Islands have formed over a hot spot. The animation consists of two coordinated video clips that offer different views of the volcano-creating process. Labels and descriptions are provided within the clips. An introductory paragraph explains how a string of islands forms as a lithospheric plate moves over a stationary hot spot, as depicted in the animation. Students are encouraged to use the movie control button
Quilt blocks: geometry with a cultural warmth
This lesson describes how quilting activities can be used to integrate geometry and lessons about various cultures into the classroom. Suggested ways of creating paper quilt blocks include Hawaiian techniques, where many different blocks are brought together to make a quilt; Amish techniques, where shapes are pieced together in an intricate pattern; and African techniques, which have an emphasis on strip textiles made on hand looms and religious symbols. The geometric concepts of symmetry, tilin
Calculate the difference between the times given by two analog clocks. Rotate the hands of the clocks to change the time and see how the calculation changes.
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.
The CSI Effect: Changing The Face of Science
Until recently, the vast majority of female student images of scientists were versions of white males working alone in laboratory settings (Barman et al. 1997). As a result, the authors asked the question, ?What phenomenon is responsible for the recent change in female students? mental images of scientists?? They suggest that the popular Crime Scene Investigation (CSI) television series and other television programming have greatly influenced how students, especially female students, perceive sc
Climate Discovery Teacher's Guide: The Little Ice Age Case Study
In this unit, students explore how scientists study climates of the past by modelling their methods through inquiry activities and investigating real data. The lessons address the difference between weather and climate, direct and indirect evidence of climate change, and natural indicators of climate such as tree rings. They will also examine what conditions were like in the 'Little Ice Age', a period of unusually cool conditions that occurred between 1300 and 1850 A.D. A lesson on glaciers uses
Earth Pulse is the National Geographic site for conservation. It features a set of links to National Geographic sites with a variety of conservation themes such as oceans, climate, energy, fresh water, and others. Many of these pages feature interactive tours or videos. Virtual Worlds is a set of interactive tours of various environments, from the rain forest at night to a new urbanist neighborhood. There is also a collection of Sights and Sounds interactive pages on a variety of ecosystems, in
Microbe Detective Story
Here is an online cooperative learning activity about microbes and germs. The lesson is divided into three missions. In the first, students unscramble clues about the mysterious microbe, next they identify the culprit, and finally they answer questions about the guilty microbe. Teacher pages, activity pages, resources, and a unique rubric are included.
Hungry for Math
This ThinkQuest Junior site helps fourth through sixth grade students understand fractions by using recipes and games as practice. Included is information about fractions, equivalent fractions, improper fractions, mixed numbers, and adding, subtracting, and multiplying fractions. Students can print out a fraction quiz and word search and they are encouraged to give feedback. A glossary of terms and additional links can be found.
How does it work? Binoculars, periscopes, and kaleidoscopes
This resource explains how binoculars, periscopes and kaleidoscopes work. The learner will discover these instruments share similarities. Instructions are included for making a periscope and a kaleidoscope.
Alive Maths/Maths a Vivre
Hands-on, interactive "microworlds," in which students investigate patterns and relationships, pose questions, play with the variables, and solve problems: Play with Lulu on a grid; practice triangle reflections; play with fractions and decimal patterns in color; try the leaping frogs applet; send hundreds of bees flying in different directions; and create shapes and designs in a spiral microworld using iteration. Every microworld leads students through an investigative process via "what if?" qu
What is a polymer, and what are some of its properties? This material is part of a series of hands-on science activities designed to arouse student interest. In this discovery activity students use white glue, water, and borax to make a vinyl polymer and study its properties. The activity includes a description, a list of science process skills and complex reasoning strategies being used, and a compilation of applicable K-12 national science education standards. Also provided are content topics,
What's so great about the Nobel Prize?
The entry in the Expert Voices blog, Connecting News with National Science Education Standards, highlights three winners of the Nobel Prize in Medicine. Links to related teaching resources are provided.
How do physicists make new particles? In this page of a particle physics tutorial, students are introduced to the concept of converting kinetic energy to mass. Students read that low-mass particles placed into an accelerator can be smashed together to produce more massive particles through the conversion of energy to mass. They see an example in which two pieces of fruit are accelerated and smashed, and additional types of fruit are produced. Copyright 2005 Eisenhower National Clearinghouse
Exploration Activity: Local and Global Precipitation Patterns
In this activity, students investigate and compare seasonal precipitation patterns in the San Francisco Bay area with locations at similar latitudes and geographic situations in the southern hemisphere. They will also characterize the pattern of annual average precipitation versus latitude for the earth as a whole. They must understand the concept of latitude, know the names of latitude zones used by meteorologists and geographers, be able to estimate latitudes on a map or globe, and be able to