原文已被隐藏，你可用 快捷键 - 或点击 显示原文 按钮来查看原文
第1段
1 .This is Scientific American's 60-Second Science. I'm Erika Beras. Got a minute?
该句暂无译文！
2 .Kids from different economic backgrounds behave differently in classrooms.
该句暂无译文！
3 .For example, working-class kids are less likely to ask for help from teachers than other middle-class counterparts.
该句暂无译文！
4 .And when they do ask for help, they're less aggressive about it.
该句暂无译文！
5 .That's according to a study that followed students from the third grade through the fifth, published in the journal American Sociological Review.
该句暂无译文！
6 .Part of the difference in how kids act comes from the guidance they've gotten at home.
该句暂无译文！
7 .As a rule, working class parents coach their kids to work out problems on their own.
该句暂无译文！
8 .And if the kids did ask for help, it was in subtle ways like sitting quietly with a hand raised.
该句暂无译文！
9 .Middle class kids?
该句暂无译文！
10 .Their parents urged them to be proactive, even to interrupt their teachers for help.
该句暂无译文！
11 .The result is that teachers were more likely to attend to the assistance-seekers and louder class-participators.
该句暂无译文！
12 .Which left working class kids behind and magnified inequalities.
该句暂无译文！
13 .So the working class child's behavior, which they and their parents see as "respectful," could impair their success in the classroom.
该句暂无译文！
14 .And prevent them from joining their classmates in higher social classes.
该句暂无译文！
15 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Erika Beras.
该句暂无译文！