 Specifically, the estimated math gap declines from 0.77 to 0.56 standard deviations, and the estimated reading gap from 0.52 to 0.29 in the roughly 18 months between the fall of kindergarten and the spring of first grade.In the four years from the spring of first grade through the spring of fifth grade, the Hispanic-white gaps narrow slightly to 0.50 standard deviations in math and widening slightly to 0.38 deviations in reading.Children of Latino, Native, and African American heritage arrive to kindergarten and first grade with lower levels of oral language, reading, and mathematics skill than Caucasian and Asian American children.