Welcome Books; Simple Machines (Children's Press) Books in Order
2 books by Lloyd G. Douglas. Reading level: Grades 1.6–1.8. Lower Grades (Ages 5–8).
2
Books
Grades 1.6–1.8
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
Welcome Books; Simple Machines (Children's Press) Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | What Is a Lever? (Welcome Books) Lloyd G. Douglas | Level 1-2 | Gentle |
| 2 | What Is a Pulley? (Welcome Books) Lloyd G. Douglas | Level 1-2 | Gentle |
