学校继续关闭或许会拉大贫富差距

许多家长、学生和教师都担心学校现在就重开还为时过早。但证据告诉我们，实体教室关闭的时间越长，学生的学习量和学习时间就越少，富人和穷人之间的差距就会更大。远程学习的转变会使教育质量变差。布鲁金斯学会根据之前的研究发现，尤其是那些来自低收入邮编区的孩子们，在数学方面退步迹象明显。而布朗大学研究员卡里克鲁斯-布埃诺的一篇新论文中也发现，在网上上课的初中生的成绩测试分数明显下降。总的来说，学生们在学校会学到更多东西。而且大家也知道，学校停课后往往会降低标准化测试的分数。没去学校上课的日子越多，影响越大；对于低年级的学生来说，尤其明显。根据Education Next最近对家长的调查，74%的学校在今年春季突然停课的时候想尽办法继续上课，但近四分之一学校却没有继续上课了。这些继续授课的学校多半是私立学校，其次是特许学校和高收入地区的学校。而且还有值得关注的点是：家庭环境是预测教育成就最有力的因素之一，但当学校关闭时，它似乎比以往任何时候都重要。举个例子，美国国家经济研究局7月份的一份工作报告发现，在停课期间，高收入地区在能给孩子提供的网上教育资源的强度远远大于低收入地区。简言之，随着学校关闭的时间增加，贫富之间的教育差距也正在扩大。

As communities prepare to reopen their public schools, many parents, students and teachers alike worry that it’s still too soon. But the evidence tells us that the longer that physical classrooms stay closed, the less students will learn, and the gap between haves and have-nots will grow even wider. The shift to remote learning has made education worse. Although we don’t yet have good results for the chaotic semester just past, a May report from the Brookings Institution, based on previous research, particularly for children from lower-income ZIP codes. And a new paper from Carycruz Bueno, a researcher at Brown, finds a significant reduction in achievement test scores for middle-school students who attend classes online. Overall, students seem to learn more when the schools are open than when they’re not. It’s long been understood that unanticipated school closures tend to reduce scores on standardized tests. The more missed days, the greater the effect. The link seems particularly pronounced for students in lower grades.We’ve long known that the home environment is among the strongest predictors of educational achievement, but when schools are closed it seems to matter more than ever. To take a single example, a July working paper from the National Bureau of Economic Research found that during the shutdown, the intensity of online searches for resources to teach children has been far greater in higher-income areas than in lower-income areas. In short, with each day the schools remain closed, shuttered, the educational gap between haves and have-nots is widening.   source

指尖新闻：高信噪比，一目了然

新冠疫情追踪