随着《基础教育课程改革纲要 (试行 )》的颁布实施 ,改变原有单纯接受式的学习方式 ,建立和形成旨在充分发挥学生主体性的学习方式已成为这场教学改革的核心任务 .本文就科学是什么、科学怎么学、科学如何教、科学在哪里等有关问题 ,结合美国“密度”教材介绍美国学生的科学学 With the promulgation and implementation of the “Outline for Basic Education Curriculum Reform (Trial)”, it has become the core task of this teaching reform to change the existing simple-acceptance learning method and establish and form a learning method that aims to give full play to the student’s subjectivity. On the issues of science, how science is learned, how science is taught, where science is concerned, etc., the combination of American “density” textbooks introduces the science of American students