character: Thomas Edison
topic: Inventions and their impact on education
grade: 2
subject: History
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character: Light Bulb
topic: How the invention of the light bulb changed classrooms
grade: 2
subject: History
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character: Motion Picture Camera
topic: The role of films in education
grade: 2
subject: History
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character: Phonograph
topic: Using sound recordings as a learning tool
grade: 2
subject: History
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