中文导读

上幼儿园之前多读一两年学前班，真的有用吗？加州的经验给出了一个有数据支撑的回答。2010年起，加州把幼儿园入学年龄线从12月2日提前到9月1日，并为年龄不够的孩子新设“过渡幼儿园”，同时扩大面向3岁儿童的州立幼儿园名额、增加中小学经费。伯克利研究者跟踪约160万名学生后发现，能连续上两年公共学前教育的孩子，到三、四年级时阅读和数学明显领先；其中低收入家庭的孩子收益更大，有助于缩小因家庭收入造成的差距。不过效果并不平均：父母不说英语的低收入家庭孩子，只有先上州立幼儿园才有较明显收益；而小学经费是否充足，也决定了这些收益能否保持。文章按“现象—背景—结果对比—条件—意义”展开，阅读时可留意 however、perhaps、may 等词如何表达转折与不确定性，以及研究者如何用“charging stations”说明后续学校的作用。

正文

Many parents wonder whether a year of school before kindergarten really makes a difference. A new report from researchers at UC Berkeley suggests that in California it did, and that the gains were still clear years later, when the children were in third and fourth grade.

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许多家长都想知道，上幼儿园之前多读一年书是否真的有用。加州大学伯克利分校研究者的一份新报告表明，在加州确实有用，而且多年以后，当孩子们上到三、四年级时，这些收益仍然很明显。

The report, “Who Benefits From Universal Prekindergarten?”, was published by the Learning Policy Institute on October 21 and described by UC Berkeley on October 22. Rucker Johnson and Austin Land followed about 1.6 million students who were old enough for kindergarten between 2011 and 2014. They studied results from roughly 6,100 elementary schools until 2019, before the COVID-19 pandemic.

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这份名为《谁从普及学前班中受益？》的报告由学习政策研究所于10月21日发布，加州大学伯克利分校于10月22日进行了介绍。鲁克·约翰逊和奥斯汀·兰德跟踪了约160万名在2011年至2014年间达到幼儿园入学年龄的学生。他们研究了约6,100所小学截至2019年、也就是新冠疫情开始之前的成绩。

The study grew out of a change in the rules. Before 2010, children only had to turn 5 by December 2 to start kindergarten, so some began school at age 4. Richer families could wait a year before sending a young child, but many low-income families could not. A 2010 law moved the date to September 1 and created “transitional kindergarten,” a new class for children who were now too young for kindergarten. At about the same time, the state opened more public preschool places for 3-year-olds and gave schools more money.

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这项研究源于一次规则变化。2010年以前，孩子只要在12月2日前满5岁就能上幼儿园，所以有些孩子4岁就开始上学。较富裕的家庭可以等一年再送年幼的孩子入学，但许多低收入家庭做不到。2010年的一项法律把截止日期改为9月1日，并设立了“过渡幼儿园”，这是为现在年龄不够上幼儿园的孩子开设的新班级。大约同一时期，州政府为3岁儿童开放了更多公立幼儿园名额，并给学校拨了更多经费。

Children who could use both programs did much better than earlier groups. By third and fourth grade, they were nearly 11 months ahead in reading and almost eight months ahead in math. The benefits were not the same for everyone, however. Low-income children whose parents spoke English gained about seven months in math and reading. For children from richer homes, the effect was much smaller, perhaps because many of them could already attend private preschool.

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能够利用这两个项目的孩子，表现比之前几届学生好得多。到三、四年级时，他们的阅读领先近11个月，数学领先近8个月。不过，收益并非人人相同。父母说英语的低收入家庭孩子，在数学和阅读上多获得了约7个月的学习进展。对于来自较富裕家庭的孩子，效果则小得多，这可能是因为他们中许多人原本就能上私立幼儿园。

Order also mattered. Low-income children whose parents did not speak English gained only a couple of months from transitional kindergarten alone. When they first went to state preschool at age 3, the gain was about half a year. The authors note that at that time, California limited support in other languages, which may have held these children back.

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顺序同样重要。父母不说英语的低收入家庭孩子，仅上过渡幼儿园只多获得了几个月的进展。如果他们3岁时先上州立幼儿园，收益约为半年。作者指出，当时加州限制了其他语言方面的支持，这可能拖累了这些孩子。

Money played a part too. An extra $1,000 per child for state preschool led to almost a quarter of a year of extra learning three to four years later. The gains were also largest and lasted longest in well-funded elementary schools.

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经费也起了作用。州立幼儿园每名儿童多投入1,000美元，三到四年后就能带来近四分之一年的额外学习进展。此外，在经费充足的小学里，这些收益最大，持续时间也最长。

Johnson called those classrooms “charging stations“ that can keep pre-K gains going or let them fade. The researchers add that a whole new grade also needs many teachers who understand how young children develop. In their view, early school helps most when later grades build on it.

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约翰逊把这些小学课堂称为“充电站”，它们既可以让学前教育带来的收益延续下去，也可能让其逐渐消退。研究者还补充说，新增整整一个年级，也需要大量了解幼儿发展规律的教师。在他们看来，只有后续年级在此基础上继续推进，早期教育才最能发挥作用。

新闻来源

• Berkeley News · California’s investment in early education brought dramatic improvement in learning, study finds (22 Oct 2026)
• Learning Policy Institute · Who Benefits From Universal Prekindergarten? Examining the Complementary Effects of Three California Education Reforms (21 Oct 2026)

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