了解正在發生的有機食品革命!透過實踐蒸汽活動和職業聯繫,
這本史密森尼非小說類讀物使用現實世界的例子來教導如何使用工程設計過程來解決問題。
Learn about the organic food revolution taking place! with a hands-on steam activity and career connections, this smithsonian nonfiction reader uses real-world examples to teach how the engineering design process is used to solve problems.