这项研究是国家教育进步评估的一部分，称为国家成绩报告单。
The study was done as part of a national assessment of educational progress called the nation's report card.
美国一些州试图对在家教育进行管理，26个州要求家长提供正规的测验成绩或可以体现孩子进步程度的专业评估。
Some states try to regulate home-schooling. Twenty-six require parents to provide regular test scores or professional evaluations of their children's progress.
美国一些州试图对在家教育进行管理，26个州要求家长提供正规的测验成绩或可以体现孩子进步程度的专业评估。
Some states try to regulate home-schooling. Twenty-six require parents to provide regular test scores or professional evaluations of their children's progress.
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