Simple Machines (Children's Press); Welcome Books Books in Order
2 books by Lloyd G. Douglas. Reading level: Grade 1.7. Lower Grades (Ages 5–8).
2
Books
Grade 1.7
Reading Level
1/5
Avg. Intensity
LG
Lower Grades
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
First book Latest book
Simple Machines (Children's Press); Welcome Books Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | What Is a Plane? (Welcome Books) Lloyd G. Douglas | Level 1-2 | Gentle |
| 2 | What Is a Wheel and Axle? (Welcome Books) Lloyd G. Douglas | Level 1-2 | Gentle |
