About This Chapter
Below is a sample breakdown of the Celestial Time and Navigation chapter into a 5-day school week. Based on the pace of your course, you may need to adapt the lesson plan to fit your needs.
|Day||Topics||Key Terms and Concepts Covered|
|Monday||Units of Time||Solar/sidereal day, synodic/idereal month, tropic/solar year|
|Tuesday||Apparent and mean solar time||How apparent and mean solar time differ, the relation of mean solar time to standard time, daylight saving time and universal time|
|Wednesday||Leap years||Origin and purpose of leap years|
|Thursday||Tropics of Cancer and Capricorn||The sun's path at the tropics and the Arctic and Antarctic Circles|
|Friday||Global Position System (GPS)||How GPS works and ways it can be used|
1. Units of Time: Solar, Sidereal & Synodic
This lesson will define solar day, sidereal day, synodic month, sidereal month, solar (tropical) year, and sidereal year, as well as tell you their exact lengths. After you've watched the video, take our brief quiz.
2. Apparent Solar Time vs. Mean Solar Time
This lesson will discuss the concept of the solar day and how long it is. You'll also learn what mean solar time, apparent solar time, time zones, and standard time have to do with it all.
3. The Origin & Purpose of Leap Years
This lesson will explain what the leap year is, why it was instituted, and why we bother using it compared to an alternative calendar that would mimic the solar year exactly.
4. Importance of the Tropic of Cancer & the Tropic of Capricorn
In this lesson, you'll learn about the significance of the Tropics of Cancer and Capricorn, and how they help explain the hot weather in the tropical zone and the cold weather above and below the Arctic and Antarctic Circles, respectively.
5. The Global Positioning System and Its Uses
This lesson will describe the global positioning system: who invented it, who runs it, how GPS works based on satellites and handheld units, and the many different uses for GPS. After you've completed this lesson, check out the quiz questions that follow.
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