http://www.teachengineering.org/view_lesson.php?url=collection/cub_/lessons/cub_rockets/cub_rockets_lesson06.xmllessontext/xmlIntegrated Teaching and Learning Program, GPSlocationlostnavigationorbitpositionsatellitetriangulationsatellitelongitudelatitudealtitudetriangulationorbitnavigation

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, students learn how these technologies can help people determine their position or the location of someone else.

Satellites have been in existence for years for various purposes, including scientific research, weather, communications, navigation and, simply, for observing the Earth. Engineers are involved with designing these satellites, getting them into orbit and analyzing the information relayed by them. Satellites for navigation purposes were developed in the late 1950s as a direct result of maritime ships needing to know exactly where they were at any given moment. As people explore more and more remote regions and as communication needs for those living in more distant locations increase, navigation and pinpointing exact locations becomes an even more important challenge for engineers. Explain how triangulation is used to find a location.Define Global Positioning Systems (GPS) and explain why they are useful.List several different ways engineers help locate people on Earth. 15TeachEngineering.orgJay ShahMalinda Schaefer ZarskeJanet Yowell../../lessons/cub_navigation/cub_navigation_lesson08.xmlS11417B7International_Technology_Education_Association-ITEA_STL_StandardsTechnologyD. The use of transportation allows people and goods to be moved from place to place. 35S114259AColoradoScienceb. Utilize direct and indirect evidence to investigate the components of the solar system 44S114259CColoradoScienced. Develop a scientific explanation regarding relationships of the components of the solar system44S1142733ColoradoMatha. Formulate a question to test a prediction, and conduct an experiment using chance devices, such as coins, spinners, and number cubes, to test predictions 44S1142734ColoradoMathb. Represent the outcomes of experiments with fractions, and describe using the concepts of impossible, unlikely, likely, and certain 44S1142735ColoradoMathc. Describe the likelihood of real-life situations using the concepts of impossible, unlikely, likely and certain (PFL)44United StatesCopyright 2012 - Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulderhttp://www.teachengineering.org/policy_ipp.phphttp://www.teachengineering.org/2011-11-304Teacher