Great Circles and Straight Lines

The concept of distances along great circles and straight lines is explored using maps. Airline flight paths are used as an example.









Great Circles and Straight Lines: Annotated Teacher Edition (Microsoft Word 4.6MB Nov27 12)
Great Circles and Straight Lines: Student Handout (Microsoft Word 2.6MB Nov27 12)
Great Circles and Straight Lines: Student Answer Sheet (Microsoft Word 614kB Nov27 12)