Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
3.9
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
673
Points per Word
0.000743
Page Count
24
Points per Page
0.020833
Series
Simple Devices
Description
Text and pictures introduce the wheel, a simple device used primarily to make it easier to move heavy loads.