Where Am I: Navigation and Satellites
How do we know where we are? What happens if you are completely lost in the middle of nowhere? Does technology provide tools for people lost in their travels? A person cannot usually determine an accurate position just by looking out a window in the middle of the ocean or vast area of land, particularly if it has not been charted before. In this lesson, students explore the concept of triangulation that is used in navigation satellites and global positioning systems designed by engineers. Also,
Getting to the Point
In this lesson, students learn how to determine location by triangulation. We describe the process of triangulation and practice finding your location on a worksheet, in the classroom, and outdoors.
Touch and Discover
Students work in pairs or small groups to identify and categorize various objects. One student is blindfolded and the other student chooses five objects for their partner to identify. The blindfolded student has to describe and try to identify the object based solely on touch. Both students then record their data, describing the objects first as human-made or natural, then living or non-living, and finally physical characteristics.
The Boxes Go Mobile
To display the results from the previous activity, each student designs and constructs a mobile that contains a duplicate of his or her original box, the new cube-shaped box of the same volume, the scraps that are left over from the original box, and pertinent calculations of the volumes and surface areas involved.
Heredity Mix ’n Match
Students randomly select jelly beans (or other candy) that represent genes for several human traits such as tongue-rolling ability and eye color. Then, working in pairs (preferably of mixed gender), students randomly choose new pairs of jelly beans from those corresponding to their own genotypes. The new pairs are placed on toothpicks to represent the chromosomes of the couple’s offspring. Finally, students compare genotypes and phenotypes of parents and offspring for all the “couples” in
Map that Habitat
Historically, sea floor mapping occurred with a more simple data collection method: soundings. Soundings are taken by dropping a weight with a pre-measured rope off the side of the boat and noting the measurement on the rope when the weight hits the bottom. This activity will replicate the creation of sea floor bathymetry by taking a simplified form of soundings in the classroom.
Rocks, Rocks, Rocks
Student teams will test rocks to identify and record rock properties such as luster, hardness, color, etc., and classify rocks as igneous, metamorphic and sedimentary. They will complete a worksheet table with all of their rock properties, and then answer some worksheet questions to deepen their understanding of rock properties and relate them to the cavern design problem.
Testing the Caverns - Optional
This activity provides a fun, activity-based closure to the Asteroid Impact unit. Students build model caverns using paper mache or clay and bury them in a tray of sand. Next, they test the models by dropping balls onto them to simulate an asteroid hitting the earth. By molding paper mache around a balloon to form a dome, or around a small cardboard box to form a rectangular structure, students will be able to build their caverns.
What's the Problem?
Lesson 1, Activity 1 introduces the Asteroid Impact unit. Students will read the President’s memo to receive their ‘marching orders’. Student teams are then formed and are given the student packet that includes worksheets and maps. Each team should become familiar with the maps and complete Worksheet One as a group.
Mahara Tutorial 5: Groups (en)
Screencast tutorial for the usage of the e-portfolio software Mahara in the context of the EU-project MOSEP - More self-esteem with my e-portfolio (www.mosep.org). Part 5: Groups.
8.1 Changing your settings
Frightened of the internet? This unit will help you make effective use of the internet, giving you the basic skills required for using web-based resources. Useful tricks and tips are provided as well as information on web browsers, the main features of a browser window, how to look at websites, using hyperlinks, searching for information on the internet, copying text, avoiding computer viruses, and using PDFs.
Losing the Business: The Donners Recall the Great Depression
Created in 1935, the Works Progress Administration (WPA) provided hope and employment for millions of unemployed workers and studied the human toll of the depression. One such study--a series of WPA-conducted interviews with Dubuque, Iowa families--found that middle-class Americans particularly felt the sting and shame of unemployment caused by the depression. In this interview, the Donners discussed the closing of their family-owned printing business in Chicago during tough times. Returning to
Mahara Tutorial 1: Registrierung (de)
Screencast für die Verwendung eines E-Portfolio Tools (Mahara) für das EU-Projekt MOSEP. Teil 1: Registrierung
1.1.8 Surgical removal of tattoos
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.
4.4 Genetic diversity and mass extinctions
To be able to understand the importance of the environment for our health, we need to know a little about the interdependence between environment and humankind. This unit will look at interactions between plants, animals and the physical and chemical environment, as well as considering ways in which humans have altered, and are altering this environment. These changes have health implications that are not always immediately obvious. Frequently, we initiate changes that are going to have their ef
Barriers and Motivators for Using OER in Schools
Barriers and Motivators for Using OER in Schools
Michael Adams on The Boomer Impact
Environics co-founder, leading pollster, and author, Michael Adams, delivers a lecture on the Boomer Impact, drawing on the insights and research in his latest book Stayin' Alive: How Canadian Boomers Will Work, Play and Find Meaning in the Second Half of Their Adult Lives. This lecture was produced in collaboration with the Literary Review of Canada.
Nasdaq makes rival bid for NYSE
Nasdaq OMX officially offered a competing bid for NYSE Euronext at $11.3 billion in cash and stock, a 19 percent premium to Deutsche Boerse's offer.
When Computers Changed the World from the Revolution Exhibition
"When Computers Changed the World" is just one of more than 100 videos in the Computer History Museum's new exhibition: "Revolution: the First 2000 Years of Computing." In the span of a single lifetime, computers have gone from large, incredibly expensive and rare devices to small, low-cost, ubiquitous tools that we can't imagine living without. Yet, few people know the history of how this came to be. Revolution: The First 2000 Years of Computing is a rich, multimedia exhibition that traces the
Handbook of Operational Amplifier Applications
The Handbook of Operational Amplifier Application is a complete and exhaustive compendium of Op Amp information. Chapters start with the basic electronics of the internal circuitry of op amps, feedback and analysis of operation followed by ideal and practical op amps. The remaining chapters provide numerous application circuits.