Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
2.3
Points
0.5
Fiction/Nonfiction
Fiction
Word Count
600
Points per Word
0.000833
Page Count
40
Points per Page
0.0125
Series
Graphic Sparks
Description
David's geeky brother Darrin invents a time machine in his bedroom. Now David and his buddy Ben can zip back a few days to retake that test they flunked. But time travel is tricky. The boys have a hard time zapping back to history class.