目录 部分目录科学事业 美洲鳄敏感的一面章 海绵动物、腔肠动物和蠕虫节 什么是动物第2节 与数学的综合动物的对称性第3节 海绵动物和腔肠动物第4节 蠕虫第2章 软体动物、节肢动物和棘皮动物节 软体动物第2节 节肢动物第3节 昆虫第4节 与环境科学的综合昆虫生态学第5节 棘皮动物第3章 鱼类、两栖动物与爬行动物节 什么是脊椎动物第2节 鱼类 作者介绍 Michael Padilla is a leader in middleschool science education. He has served as an editor and electedofficer for the National Science Teachers Association. He haeenprincipal investigator of several National Science Foundation andEisenhower grants and served as a writer of the National ScienceEducation Standards. As lead author of Science Explorer, Mike hasinspired the team in developing a program that meets the needs ofmiddle grades students, promotes science inquiry, and is alignedwith the National Science Education Standards. 序言
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