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Sinossi

How do you know you have the right answer to a problem? Prove it! Simple, yet engaging text and colorful images introduce readers to the importance of finding patterns, recording facts, making observations, and more.

Durata: 4 minuti (00:03:58)
Data di pubblicazione: 10/08/2017; Unabridged; Copyright Year: — Copyright Statment: —

• Letteratura per ragazzi