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Garden Heights

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Mrs. Frisby and the Rats of NIMH — Robert C. O'Brien
Garden Heights · Independent Novel Study

Mrs. Frisby and the Rats of NIMH

a novel by Robert C. O’Brien
Mrs. Frisby is a widowed field mouse with four children and a deadline she cannot argue with: the farmer’s plow is coming, and her winter home in the garden must be abandoned. But her youngest son, Timothy, is too ill to be carried out into the cold. Searching for help, she goes to the wise Mr. Ages, rescues a young crow from the farm cat, and is finally sent to the strangest neighbors on the farm — a colony of rats who live under a rosebush with electric light, a library, and a secret history. They were taken to a laboratory called NIMH, taught to read, and changed into something no rat was meant to be; now they are planning to stop stealing from human beings altogether. To save Timothy, Mrs. Frisby must trust them with her family — and take a risk that only she can take. Robert C. O’Brien’s Newbery Medal winner turns a small animal rescue into a serious story about intelligence, courage, and what a community owes the world it lives in. These 8 Part workbooks cover the full novel, with vocabulary, comprehension, literary analysis, Think Deeper reasoning, SAT & TOEFL-style practice, and writing, all built on real-world CLIL background.
Level 5Newbery Medal 1972Interactive & auto-gradedCLIL-based
Library  ›  Mrs. Frisby and the Rats of NIMH
Level 5 · Strong ReadersUS Grade 5–8Lexile 790LAR (ATOS) 5.1 · Newbery Medal 1972 · Rats of NIMH Book 1
📖 Get the right book: our workbooks follow the Aladdin — Atheneum (paperback) edition — ISBN 9780689710681. All recommended editions →
Subject Personalities
The real-world subjects this novel study leans into — the depth behind every Knowledge Bank and reading passage.
PRIMARY LENS
🧬 Animal Cognition & Laboratory Research
How animal intelligence is studied, what a maze experiment actually measures, and the real institute standing behind the initials.
SUPPORTING
🌾 Rodent & Farm Natural History
Field mice, owls, and cats as real predators and prey — and the plowing year that sets the deadline hanging over the whole novel.
SUPPORTING
💡 Technology, Literacy & Self-Sufficiency
The rats’ stolen electricity, the library they built for themselves, and the Plan to stop living off others.
Choose a Part
Progress
PT1
Part 1 · Chapters 1–4
Timothy Falls Ill • A Visit to Mr. Ages • Jeremy the Crow and Dragon the Cat • Moving Day and the Plow
VocabularyComprehensionLiterary ElementsThink DeeperStandardized TestWriting
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PT2
Part 2 · Chapters 5–8
An Impossible Choice • A Favor Repaid • The Flight to the Owl • Sent to the Rats
VocabularyComprehensionLiterary ElementsThink DeeperStandardized TestWriting
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PT3
Part 3 · Chapters 9–12
Into the Rosebush • Brutus at the Gate • A Library Underground • Meeting Justin and Nicodemus
VocabularyComprehensionLiterary ElementsThink DeeperStandardized TestWriting
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PT4
Part 4 · Chapters 13–16
The Story of NIMH Begins • Caught in the City • Life in the Cages • Injections and the Maze
VocabularyComprehensionLiterary ElementsThink DeeperStandardized TestWriting
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PT5
Part 5 · Chapters 17–19
Learning to Read • Escape Through the Air Ducts • The Idea of Thorn Valley
VocabularyComprehensionLiterary ElementsThink DeeperStandardized TestWriting
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PT6
Part 6 · Chapters 20–22
The Boniface Estate • Stolen Light and Borrowed Comfort • The Plan Takes Shape
VocabularyComprehensionLiterary ElementsThink DeeperStandardized TestWriting
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PT7
Part 7 · Chapters 23–25
A Powder for Dragon • Trapped in the Birdcage • What She Overhears About NIMH
VocabularyComprehensionLiterary ElementsThink DeeperStandardized TestWriting
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PT8
Part 8 · Chapters 26–28 + Epilogue
The Warning to the Rats • Moving the Cinder Block • Leaving the Rosebush • Epilogue: Thorn Valley
VocabularyComprehensionLiterary ElementsThink DeeperStandardized TestWritingReport Card
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