GPS: Never EVER Lost!

By 4th grader and Mr. Welch


Have you ever been lost?  Imagine you are hiking or sailing and you suddenly realize, you don’t know where in the world you are!  Your heart begins to pound.  Your forehead begins to sweat.  Then you smile and pull out your handy GPS.

My report will cover three interesting ideas.  First, I will write about what G P S is and what it does.  Next, I will cover the invention of the G P S.  Finally, I will end with the GPS Satellites.  So, keep reading and let’s begin this journey about GPS.

What GPS is and what GPS does

This paragraph is about G P S.  IT tells you are. It can measure distance. Marshal brain said that a GPS receiver can help you find where you are, anywhere on earth, as long as you has a clear enough view of the sky. If your GPS receiver can get signals from 3 or more satellites, it can figure out where you are by doing some fancy math called trilateration.


The Invention of the GPS

This paragraph is about the invention of the GPS.  The G P S is vary handy. The army is it is vary smart for doing it. Allison K. Brown said that in the early 1970's, the military began developing GPS. It became fully operational in 1995. (World Book Encyclopedia)

The GPS Satellites

This paragraph is about the GPS Satellites.  There are 27

GPS satellites are flying around the earth. They each weigh a lot.
 Marshall Brain taught that, The Global Positioning System (GPS) is actually a constellation of 27 Earth-orbiting satellites (24 in operation and three extras in case one fails). (


In conclusion, if you never want to be scared by getting lost, be sure to have a GPS. I hope you enjoyed learning about GPS.  I know I enjoyed learning about [1st Main Idea].  Always remember [2nd Main Idea] and [3rd Main Idea]. [Mr. Welch’s Thanks For Reading: Thanks a lot for taking the time to read my report.]