缅因州九年级物理的有效性：概念理解
Effectiveness of Ninth-Grade Physics in Maine: Conceptual Understanding
摘要：
物理第一运动--向九年级学生教授真正的物理课程--在高中越来越受欢迎。对这一运动的支持和反对有几种不同的修辞论点，在物理教育中也相当有争议。然而，没有实际的证据来评估科学教学顺序的这种实质性转变的成功或失败。我们进行了一项比较研究，在缅因州的9年级和12年级的物理课。学生的理解和增益方面的力学概念进行了比较，从著名的多项选择调查和个别学生访谈摘录。结果表明，这两个人口开始物理课程的内容相似的知识和具体的困难，但在学习的概念，九年级学生更敏感的教学方法。
英文摘要：
The Physics First movement - teaching a true physics course to ninth grade students - is gaining popularity in high schools. There are several different rhetorical arguments for and against this movement, and it is quite controversial in physics education. However, there is no actual evidence to assess the success, or failure, of this substantial shift in the science teaching sequence. We have undertaken a comparison study of physics classes taught in ninth- and 12th grade classes in Maine. Comparisons of student understanding and gains with respect to mechanics concepts were made with excerpts from well-known multiple-choice surveys and individual student interviews. Results indicate that both populations begin physics courses with similar content knowledge and specific difficulties, but that in the learning of the concepts ninth graders are more sensitive to the instructional method used.
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