1.3 Grade Levels in a Year: What Our 2025–26 Data Says About Math Gaps in K–5
A math gap behaves like a debt: cheap to close in kindergarten, expensive by fourth grade. What 2025–26 data from 16,000+ students says about growing 1.3+ grade levels in a year — in K–2 before gaps form, in 3–5 after they have.
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