Explorers (ABDO); Checkerboard Library Books in Order
Explorers (ABDO); Checkerboard Library is a 3-book series by Kristin Petrie for ages 5–8, at a grades 4–5 reading level, with gentle to mild content (HootRated intensity 1–2 out of 5).
- Books
- 3
- By publication date
- Content intensity
- Gentle to mild
- HootRated 1–2 out of 5 · avg 1.3
Explorers (ABDO); Checkerboard Library Reading Order
Series numbers aren't available for most Explorers (ABDO); Checkerboard Library books, so they're listed by publication date (oldest first).
| # | Title | Reading Level | Ages | Content |
|---|---|---|---|---|
| 1 | Christopher Columbus 2004 | Level 4-5 | 5-8 | Gentle |
| 2 | Ferdinand Magellan 2006 | Level 4-5 | 5-8 | Gentle |
| 3 | John Smith 2006 | Level 4-5 | 5-8 | Mild |
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
Series books grow with readers — but that's also the trap. Most series start at one reading level and one content intensity and drift upward over the course of the run. Explorers (ABDO); Checkerboard Library (3 books by Kristin Petrie) lands at a grades 4–5 reading level, with average content intensity 1.3/5. Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.
The reading-order table above lists every book with per-volume reading level, age and intensity ratings so you can spot any escalation before it catches your reader off guard. For a deeper dive into how we score text difficulty vs. emotional weight separately — and why series readers especially benefit from that split — see our methodology page.
All Explorers (ABDO); Checkerboard Library Books
Series Like Explorers (ABDO); Checkerboard Library: What to Read Next
Similar reading level, content intensity and themes.
- True Book; True Book: The Thirteen Colonies by Kevin Cunningham 4 books · Grades 5–6 · gentle content
- Library...The Lost Colony by Susan Whitehurst 4 books · Grades 4–6 · gentle content
- Time Shift by Henrietta McCall 4 books · Grades 5–6 · gentle to mild content
- Before They Were President by Michael Rajczak 9 books · Grades 4–6 · gentle to mild content
- Edge Books; Warriors of History by Michael Martin 6 books · Grades 4–5 · gentle to mild content
- Women of Mythology: Goddesses, Warriors...Hunters by Jodyanne Benson 6 books · Grades 4–5 · gentle to mild content
Questions about the Explorers (ABDO); Checkerboard Library series
- What reading level is the Explorers (ABDO); Checkerboard Library series?
- Explorers (ABDO); Checkerboard Library books are at a grades 4–5 reading level (average grade level 4.8), and HootRated recommends the series for ages 5–8. There are 3 books in the series.
- What order should I read the Explorers (ABDO); Checkerboard Library books?
- Series numbers aren't available for most Explorers (ABDO); Checkerboard Library books, so HootRated lists them by publication date: Christopher Columbus (2004); Ferdinand Magellan (2006); John Smith (2006).
- What age is the Explorers (ABDO); Checkerboard Library series appropriate for?
- HootRated recommends Explorers (ABDO); Checkerboard Library for ages 5–8. Content is gentle to mild (HootRated intensity 1–2 out of 5). Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.