Students solve and reduce fractional equations by playing Soccer Shootout. Levels of difficulty range from Easy to Super Brain and users can practice the addition, subtraction, multiplication, and division of fractions. Fractions with like and unlike denominators are included. Students play against the computer and are provided with the correct answer when a wrong one is entered.
Trees, soil and water : Journey to Forever
Trees, soil and water: Journey to Forever - healthcare for mountains, trees for deserts, trees for people, forest, forestry, deforestation, erosion, soil conservation, water conservation, desertification This article discusses the interdependence between trees, soil, and water from a biological and conservationist standpoint.
Methods and Strategies : Using Models Effectively
Models are crucial to science teaching and learning, yet they can create unforeseen and overlooked challenges for students and teachers. This article guides students through age-appropriate, critical analyses of instructional models.
PBS provides students in grades 4-7 with oodles of science fair ideas and a science fair tip sheet in this section of the DragonflyTV web site. Overviews of investigations from the television show are offered to help students hone in on an interesting topic and create their own science fair project. Each overview relays a question that a child asked on television, the main steps in his or her experiment, and the results. The overviews also include ideas for further investigations that build on t
Tides and gravity labs
How does gravity cause tides in the oceans? This section, part of an interactive laboratory series for grades 8-12, introduces students to four activities on tides and gravity that cover critical orbital speed between Earth and the moon, gravitational forces between two bodies, tidal effects from the sun and moon, and the change in tidal levels over time. The activities include hands-on animations of concepts whose variables can be manipulated by students. Questions posed to students include ans
Graphing for Area
Middle School, difficulty level 2. Graph six points and find the area of the resulting hexagon.
Algebra balance scales : negatives (grades 6-8)
This online manipulative features a virtual balance scale. It offers students an experimental way to learn about solving linear equations involving negative numbers. The applet presents an equation for the student to illustrate by balancing the scale using blue blocks for positive units and variables and red balloons for negative units and variables. The student then works with the arithmetic operations to solve the equation. A record of the steps taken by the student is shown on the screen and
Kids' Quest on Disability and Health
This site is intended to get kids to think about people with disabilities and some of the issues related to participation in daily activities, health, and accessibility.
Rutherford and Bohr describe atomic structure 1913
This page is from PBS A Science Odyssey: People and Discoveries. It describes Bohr's contribution to theories of the atom and its relationship to others' such as Rutherford's. Links to relevant pages are provided. An image of Bohr's conception drawn in his notebook is included.
Activity : Fusion Reactions
This activity gives students an opportunity to learn about the elements created in the cores of high-mass stars by fusion reactions. They will discover that all stars start by burning hydrogen and end up creating many heavier elements inside their cores, elements that will be released into space when it dies in a supernova explosion. Students associate a layer with an element that is being produced by the high-mass star. This will illustrate that as the temperature of the star increases with dep
Soil Litter: The Food Web
Teachers could incorporate this brief radio program into a variety of learning settings. For example, teachers living in the temperate deciduous forest biome can play the program for students when leaves begin to fall in autumn. The program could also be used whenever students anywhere are learning about food webs or soil. Teachers can choose to use either the audio or text version (or both) to give students listening or reading practice.
The MegaPenny Project
This site illustrates the magnitude of large numbers by showing and describing arrangements of large quantities of U.S. pennies. It begins with16 pennies that measure one inch when stacked and one foot when placed in a row. The next visual shows a thousand pennies, and in progressive steps the site builds to a quintillion pennies. All pages have tables at the bottom listing the value of the pennies on the page, size of the pile, weight, and area (if laid flat).
This article and audio file from National Public Radio highlights the work of Manjul Bhargava, a professor at Princeton University. He is an expert in number theory and a master of the tabla, a small Indian hand drum used to create music with rhythmic, precise patterns. In this article, Bhargava describes the mathematical and improvisational aspects of classical Indian music. The article is part of a Morning Edition series exploring the intersection of art and science. An audio file lets visitor
In this module we describe the random demodulator and how it can be used in the application of the theory of compressive sensing to the problem of acquiring a high-bandwidth continuous-time signal.
Jane Goodall Visits Duke University
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Relay For Life 2011
Celebrate. Remember. Fight Back. Sign up for this year's Relay For Life event, taking place April 8 and 9 at Plaster Sports Complex. Learn more about the event and how to donate at http://www.missouristate.edu/relayforlife
1.4.6: Measures of dispersion
This Unit will introduce you to a number of ways of representing data graphically and of summarising data numerically. You will learn the uses for pie charts, bar charts, histograms and scatterplots. You will also be introduced to various ways of summarising data and methods for assessing location and dispersion.
Designing a Package that Works
The goal is for students to understand the basics of engineering associated with the packaging of items to preserve, market, and safely deliver products. The packaging for each type of use varies. While observing and thinking about all packaging is encouraged, this activity focuses on packaging for transporting goods (shipping).
Students consider how weather forecasting plays an important part in their daily lives. They learn about the history of weather forecasting — from old weather proverbs to modern forecasting equipment — and how improvements in weather technology have saved lives by providing advance warning of natural hazards.
8 Online shopping – what it means
Online shopping – think of it as a shopping centre in cyberspace, with online auctions as the car-boot sale in the car park. This unit will help you understand how to use online shopping sites, how to ensure that you are using the best sites and the best ways to protect your security.