The beginnings of probability
These pages present, in terms of a fictional story based on true events, the problem that inspired the development of mathematical probability in Renaissance Europe by French mathematicians Pierre de Fermat and Blaise Pascal. Two equally skilled players are interrupted while playing a game of chance for a certain amount of money. Given the score of the game at that point, how should the stakes be divided? Outlined here is, first, the particular solution and then the general solution based on a c
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.
This site presents seven lessons that allow students in grades K-3 to investigate the concepts of understanding and reading maps. The lessons utilize a story about a little girl named Nikki who visits an imaginary amusement park. A teacher guide for each lesson includes objectives, teaching suggestions, activities, and student worksheets.
Physics, astronomy and science news, community, education and reference. Job board, directories, forums, chat, education reference, fun and more.
Examine the graph of two points in the plane. Find the slope of the line that passes through the two points. Drag the points and investigate the changes to the slope and to the coordinates of the points.
The future of energy, environment
The lasting effects of energy consumption on the environment continue to be a problem as the world's population requires more and more energy. This informational piece, part of a series about the future of energy, introduces students to environmental issues related to the use and production of energy. Fossil fuels, nuclear energy, hydropower, and clean air are discussed in the context of environmental quality. Students can read about the development of environmentally friendly vehicles and follo
Science and Technology
The goal of engineering is to solve practical problems through the development or use of technologies. Technology/engineering works in conjunction with science to expand our capacity to understand the world.
Earth and Space
In earth and space science, students study the origin, structure, and physical phenomena of the earth and the universe. Earth and space science studies include concepts in geology, meteorology, oceanography, and astronomy.
Nice introduction to high performance liquid chromatography that includes information on the modes of separation, a comparison of normal vs. reversed phase separations, identification of analytical, semi-prep, and preparative scale LC and a very nice large glossary that includes definitions of terms related to chromatography.
6.4 Second Essay
Childcare, education, working conditions, healthcare, crime … these issues are hotly debated in today's society. They are also issues that Robert Owen, seen by some as a visionary and by others as a knave and a charlatan, sought to address in the early 1800s. This unit uses a series of essays written by Owen to explore the ideas of this important and controversial figure.
Decarteret matches pole vault record at Florida State
The Northeastern women's track & field team recorded 15 top-10 marks, including another record-breaking performance by Jillena Decarteret, amidst stiff competition at this weekend's Florida State Relays in Tallahassee, Fla. Decarteret tied the school record in the pole vault with a winning performance of 4.06m (13'3.75), beating out 20 others for the title. The sophomore's vault matched Laura Chmielewski's mark set back almost seven years ago on May 8, 2004. Decarteret has continued to make upw
Wren's Nest And the Geo Meet
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Engineers Love Pizza, Too!
In this service-learning engineering project, students follow the steps of the engineering design process to design an assistive eating device for a client. More specifically, they design a prototype device to help a young girl who has a medical condition that restricts the motion of her joints. Her wish is to eat her favorite food, pizza, without getting her nose wet. Students learn about arthrogryposis and how it affects the human body as they act as engineers to find a solution to this open-e
Shoes Under Pressure
Students explore the basic physics behind walking, and the design and engineering of shoes to accommodate different gaits. They are introduced to pressure, force and impulse as they relate to shoes, walking and running. Students learn about the mechanics of walking, shoe design and common gait misalignments that often lead to injury.
A New Angle on PV Efficiency
Students examine how the orientation of a photovoltaic (PV) panel relative to the sun affects the efficiency of the panel. Using sunshine (or a lamp) and a small PV panel connected to a digital multimeter, students vary the angle of the solar panel, record the resulting current output on a worksheet, and plot their experimental results.
The Grand Challenge: Simulating Human Vision
This lesson introduces the Robotics Peripheral Vision Grand Challenge question. Students are asked to write journal responses to the question and brainstorm what information they will need to answer the question. The ideas are shared with the class and recorded. Students then share their ideas with each other and brainstorm any additional ideas. Next students draw a basis for the average peripheral vision of a human being and then compare that range to the range of two different focal lengths in
Graphing Equations on the Cartesian Plane: Slope
The lesson teaches students about an important characteristic of lines: their slope. Slope can be determined either in graphical or algebraic form. Slope can also be described as positive, negative, zero, or undefined. Students get an explanation of when and how these different types of slope occur. Finally, students learn how slope relates to parallel and perpendicular lines. When two lines are parallel, they have the same slope and when they are perpendicular their slopes are negative reciproc
Measure Twice, Cut Once
Students learn the metric units engineers use to measure mass, distance (or length) and volume. They make estimations using these units and compare their guesses with actual values. To introduce the concepts, the teacher needs access to a meter stick, a one-liter bottle, a glass container that measures milliliters and a gram scale.
Measuring Lava Flow
Students learn how volume, viscosity and slope are factors that affect the surface area that lava covers. Using clear transparency grids and liquid soap, students conduct experiments, make measurements and collect data. They also brainstorm possible solutions to lava flow problems as if they were geochemical engineers, and come to understand how the properties of lava are applicable to other liquids.