Preschool classrooms have become increasingly fraught spaces, with teachers cajoling their charges to finish their “work” before they can go play. And yet, even as preschoolers are learning more pre-academic skills at earlier ages, I’ve heard many teachers say that they seem somehow—is it possible?—less inquisitive and less engaged than the kids of earlier generations. More children today seem to lack the language skills needed to retell a simple story or to use basic connecting words and prepositions. They can’t make a conceptual analogy between, say, the veins on a leaf and the veins in their own hands.

New research sounds a particularly disquieting note. A major evaluation of Tennessee’s publicly funded preschool system, published in September, found that although children who had attended preschool initially exhibited more “school readiness” skills when they entered kindergarten than did their non-preschool-attending peers, by the time they were in first grade their attitudes toward school were deteriorating. And by second grade they performed worse on tests measuring literacy, language, and math skills. The researchers told New York magazine that overreliance on direct instruction and repetitive, poorly structured pedagogy were likely culprits; children who’d been subjected to the same insipid tasks year after year after year were understandably losing their enthusiasm for learning.

That’s right. The same educational policies that are pushing academic goals down to ever earlier levels seem to be contributing to—while at the same time obscuring—the fact that young children are gaining fewer skills, not more.