Cover of The Sea of Monsters

The Sea of Monsters

by Rick Riordan

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Assigned across 2 curriculum lists · 1 state

Grade placement varies by school — the median assigned book spans 4 grade levels (83% span three or more, across 13,258 source-cited assignments).

The Sea of Monsters by Rick Riordan is assigned in US schools at grades 4–6. It appears across 2 curriculum references and 1 state, sourced from state DOE pages and AP/IB/Common Core syllabi. Every citation below links to the primary source.

This page shows where The Sea of Monsters is assigned in US schools — curricula, states, grades, and the primary-source citations behind each placement. Not a summary or study guide.

Grade range
Grades 4–6
First published
2006
ISBN-13
9780141381497

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Where this book is assigned

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Common questions

What grade level is The Sea of Monsters?
The Sea of Monsters is most commonly assigned in US schools in grades 4–6. Specific grade placement varies by curriculum — AP Literature and IB English Literature typically use it in grades 11-12.
What curricula assign The Sea of Monsters?
The Sea of Monsters appears on reading lists for Mark Twain Readers Award. Each assignment on this site links to its primary-source citation.
Is The Sea of Monsters banned in schools?
The Sea of Monsters does not appear in PEN America's Index of School Book Bans 2022-2024. No documented multi-district removals on record, but individual districts may challenge titles locally.

Why this book is on this list

How we classify

Each dimension below is sourced from a public reference. The full framework is documented on the classification standard page.

Lexile measure
Not classified — this book has no published Lexile measure.
Grade band
Grades 46 — drawn from state ELA frameworks and AP/IB syllabi citing this book.
Curriculum alignment
Cited in 2 curricula on this site (see “Where assigned” above for primary-source links).
State-level evidence
Cited in 1 state ELA framework or DOE list (see citations above).
Removal / banning records
No tracked removal or challenge records in cited sources.
Seasonal / contextual tags
Tagged for: award-winner, book-club.

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