Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.4
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
3000
Points per Word
0.000167
Page Count
48
Points per Page
0.010417
Description
This illustrated discussion of global positioning systems (GPS) covers their development and uses for navigation, rescue, military operations, recreation, and geocaching.