Topic 5: Earth Geometry and Time Zones
- GM Lesson 208 Great Circles
- GM Lesson 209 Latitude and Longitude
- GM Lesson 210 Locating Positions on Earth’s Surface
- GM Lesson 211 Angular Distance on a Meridian
- GM Lesson 212 Distance on the Same Meridian
- GM Lesson 213 Distance on the Same Parallel of Latitude
- GM Lesson 214 Practical Latitude and Longitude Problems
- GM Lesson 215 GMT, UTC and the International Date Line
- GM Lesson 216 Longitude and Time
- GM Lesson 217 Calculating Time Differences
- GM Lesson 218 Daylight Saving and Practical Time Zones
- GM Lesson 219 Mixed Earth Geometry and Time Zone Problems