character: Frankie the Builder
topic: Comparing Modern Building Techniques to Traditional Methods
grade: 3
subject: History
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character: Tim the Time Traveler
topic: Exploring Ancient Architecture
grade: 3
subject: History
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character: Sally the Scientist
topic: Materials Used in Building Then and Now
grade: 3
subject: History
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character: Historical Harry
topic: Famous Structures: Past vs. Present
grade: 3
subject: History
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