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.
Box model (grades 6-8)
This virtual manipulative enables the student to randomly generate data that is displayed on a chart. The chart shows the results of a simulated drawing with replacement from a set of numbers selected by the student. The manipulative can be used to simulate flipping a coin or tossing a die. A pause button stops the simulation. A button for showing theoretical probability places an outline on the theoretical probabilities chart, which allows the student to compare the theoretical and experimental
Factsheets emphasize the meaning of place value in division, the concept of division as repeated subtraction, division by 10 and 100, and well explained examples of both short and long division. A game as well as worksheets and quizzes are provided for practice.
Science News For Kids
This resource is meant to enhance the usefulness of Science News in the middle-school classroom and offer recreational reading and activities for students interested in science. It is comprised of six zones: a weekly brainteaser for those who enjoy solving and inventing puzzles, entertaining science-fiction composition exercises for those interested in writing, and weekly science fair profiles and tips. The GameZone contains a small selection of logic and memory games, implemented as Java applet
This web page offers basic illustrated information about Pythagoras and the famous equation he and his followers are credited with developing. The page contains a link to an applet that demonstrates the meaning of the equation. From the applet, links to three problems show the equation's application in baseball, scaling a wall, and in construction. This web page requires the student know what a right triangle is and how area is measured. Copyright 2005 Eisenhower National Clearinghouse
Agricultural biotechnology FAQs
This resource from the U.S. Department of Agriculture list a number of frequently asked questions regarding biotechnology. The FAQs addresses questions related to defining biotechnology, biotechnology helping farmers and consumers, public dialogue and exchange of information on biotechnology, federal agencies that regulate biotechnology, testing a biotechnology derived plant, commercial production of a biotechnology derived plant, exposure of biotech crops, the role of the EPA (Environmental Pro
Science Sampler : Rockin' around the rock cycle
The following inquiry-based activities were designed as part of a unit intended to aid students in understanding the rock cycle, with the assumption that, after being taught the lessons in the unit, students would have gone beyond a rote memorization of the rock types and rock cycle. The ultimate goal of this hands-on lesson is that students will know and be able to discriminate between them.
Learn about the chemical reactions that take place when things burn in this interactive activity from the NOVA Web site.
How ozone is made
How does ozone in the upper atmosphere help protect life on Earth? This informational piece, part of an interactive laboratory series for grades 8-12, explores the production and destruction of ozone in the upper atmosphere. Here students view an animation of ultraviolet light breaking an oxygen molecule to form ozone and then the ozone splitting when struck by ultraviolet light. Text explanations are provided along with chemical equations. Copyright 2005 Eisenhower National Clearinghouse
Observe how air pressure affects a rising balloon
This animation enables students in high school Earth science classes to observe how atmospheric pressure changes with respect to altitude. Students are instructed to click and drag a lever to move a balloon between altitudes of 5,000 and 30,000 feet. A pair of gauges indicates the volume in the balloon and the atmospheric pressure at each elevation. The legend indicates that the concentration of air molecules decreases with increasing altitude. Copyright 2005 Eisenhower National Clearinghouse
Science Sampler : Thinking about students' questions
Asking questions is a vital component in any classroom, but it is absolutely essential in a science classroom. As science teachers, we know that questioning plays a major role in the inquiry process and has a positive impact on students' learning. This article discusses the importance of questioning skills and current research on questioning techniques. In addition, this article will present a series of lessons that were implemented by the author to improve the questioning abilities of middle sc
The modern atom model
All particles in the atom are in constant motion, according to modern atomic theory. On this page of a tutorial on particle physics, students evaluate the relative size of atomic particles. If protons and neutrons are balls with a 1-centimeter diameter, then electrons have the diameter of a hair. The comparable size of an atom made from these particles would be 30 football fields long. Students read that atoms are mostly empty space. Copyright 2005 Eisenhower National Clearinghouse
Miss Lindquist: The Tutor
A free Web tutoring system for middle school and high school students concentrating on writing expressions for algebra word problems. Teachers can assign portions of this site for homework, students can get help as they do their homework, and progress reports can be sent to a teacher's e-mail address. The program randomly selects problems from the section that the student is working on, e.g.: One-operator problems; harder one-operator probems involving speed, distance, and time; easier two-opera
Drift Seeds And Drift Fruits : Seeds That Ride The Ocean Currents
This essay explores seed dispersal by water and describes some of the physical adaptations that evolution has produced in the seeds and fruits that travel this way. There is a background essay, discussion questions, state and national standards, and links to related Teacher's Domain resources.
An Introduction to the Coordinate Plane
This math site has students find points on a number line and graph points in the coordinate plane. Site includes information about negative numbers on a line, changing the scale of a graph, estimating points, and tricky graphs. A glossary of terms, links to other sites, and suggestions on how to use the material can also be found.
Etymologies of Algebra, Geometry, Trigonometry
What are the origins and roots of the words geometry, algebra, and trigonometry?
The Ocean Project
The Ocean Project is a collaboration of several zoos, aquariums, science museums, and conservation museums/organizations who are committed to providing better education to their respective visitors and the public regarding the importance of the oceans and the role each person plays in conserving the earths waters. The website offers access to public opinion research, communication strategies, conservation networks, and information and research to informal educators, in order to promote the ocean
Cups and Volume
How can I calculate the volume of a box, if I know how many cups of rice fill it? And how can 2 cups be a volume measure?
Science Sampler : Thriving in the co-taught classroom
Classrooms are becoming more diverse as students with specific learning needs are moved out of self-contained special education classrooms and into mainstreamed classrooms with their non-disabled peers. The use of the co-teaching model allows for extensive flexibility in structuring instructional activities and responding to the needs of diverse learners. This article provides a summary of co-teaching practices that have been effective and beneficial for many years.
Examine evidence of Earth turning about an axis
Using an animation of the classic pendulum experiment, this resource supplies middle and high school students with evidence of the Earth's rotation on its axis. The introduction explains that although pendulums are known to swing in a fixed path, on Earth their path appears to shift over time. As the animation reveals, it is not the pendulum's swing that changes--it is the Earth beneath the pendulum that moves. The animation contains three screens: two with different views of a pendulum swinging