character: Luna
topic: The Future of 3D Printing Technology
grade: 4
subject: Computer Science
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character: Robo
topic: How 3D Printers Work
grade: 4
subject: Computer Science
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character: Pixel
topic: Basics of Computer-Aided Design (CAD)
grade: 4
subject: Computer Science
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character: Spark
topic: Innovations in Technology for Kids
grade: 4
subject: Computer Science
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