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Table B.2.a.-2 Percentage distribution of public school students across National Assessment for Educational Progress (NAEP) mathematics achievement levels, by grade level and school locale: 2015
Grade level and school locale Below Basic   At Basic   At or above Proficient
    Total   At Proficient   At Advanced
Percent Standard
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  Percent Standard
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Grade 4                            
Total 18.9 (0.28)   41.7 (0.33)   39.4 (0.40)   32.3 (0.27)   7.1 (0.22)
City 23.5 (0.46)   42.0 (0.61)   34.5 (0.65)   27.9 (0.52)   6.6 (0.42)
Large 25.8 (0.64)   42.7 (0.82)   31.6 (0.95)   26.1 (0.69)   5.4 (0.49)
Midsize 22.1 (1.50)   41.6 (1.65)   36.3 (2.09)   29.1 (1.70)   7.2 (1.06)
Small 19.6 (1.34)   40.6 (1.39)   39.7 (2.02)   30.9 (1.25)   8.9 (1.41)
Suburban 16.2 (0.50)   39.8 (0.61)   44.0 (0.88)   35.5 (0.62)   8.5 (0.42)
Large 15.7 (0.60)   39.0 (0.68)   45.3 (1.01)   36.2 (0.69)   9.1 (0.48)
Midsize 16.6 (1.40)   42.8 (1.36)   40.6 (2.20)   34.5 (1.79)   6.1 (0.89)
Small 23.5 (3.70)   46.4 (2.98)   30.2 (3.66)   26.5 (3.17)   3.7 (0.72)
Town 20.2 (0.95)   44.5 (0.63)   35.3 (0.96)   29.9 (0.91)   5.4 (0.42)
Fringe 21.6 (3.11)   42.5 (1.82)   35.9 (2.85)   30.2 (2.59)   5.6 (0.81)
Distant 19.4 (1.25)   45.4 (1.26)   35.2 (1.39)   30.2 (1.20)   5.0 (0.63)
Remote 20.2 (1.20)   45.0 (1.31)   34.8 (1.88)   29.1 (1.66)   5.7 (0.61)
Rural 16.3 (0.69)   44.0 (0.63)   39.7 (0.89)   34.1 (0.74)   5.5 (0.29)
Fringe 15.4 (1.19)   41.7 (1.03)   42.9 (1.52)   36.2 (1.24)   6.8 (0.51)
Distant 17.2 (0.76)   46.4 (0.83)   36.4 (1.03)   32.2 (0.99)   4.2 (0.34)
Remote 17.8 (1.03)   47.7 (1.50)   34.5 (1.46)   30.4 (1.34)   4.1 (0.54)
                             
Grade 8                            
Total 29.6 (0.33)   38.3 (0.29)   32.1 (0.34)   24.3 (0.29)   7.8 (0.21)
City 35.5 (0.71)   36.5 (0.62)   28.1 (0.68)   20.9 (0.50)   7.2 (0.50)
Large 38.1 (1.19)   36.0 (0.89)   25.9 (1.02)   19.4 (0.69)   6.5 (0.67)
Midsize 37.9 (1.97)   37.1 (1.32)   25.0 (1.63)   19.4 (1.29)   5.6 (0.66)
Small 28.2 (1.36)   36.9 (1.32)   34.9 (1.57)   25.0 (1.14)   9.9 (1.31)
Suburban 26.1 (0.54)   37.3 (0.46)   36.6 (0.58)   26.9 (0.49)   9.8 (0.34)
Large 25.6 (0.59)   36.8 (0.49)   37.5 (0.63)   27.4 (0.53)   10.1 (0.38)
Midsize 28.4 (1.95)   39.8 (1.45)   31.8 (1.86)   24.5 (1.36)   7.4 (0.92)
Small 28.6 (3.48)   40.4 (1.53)   31.1 (3.31)   22.8 (2.51)   8.2 (1.20)
Town 30.3 (0.93)   41.9 (0.81)   27.8 (0.89)   22.7 (0.81)   5.0 (0.33)
Fringe 27.7 (2.14)   41.9 (1.50)   30.4 (2.22)   24.2 (1.93)   6.2 (0.77)
Distant 30.9 (1.32)   42.7 (1.44)   26.4 (1.28)   21.9 (1.09)   4.4 (0.52)
Remote 31.8 (2.02)   40.5 (1.29)   27.6 (1.96)   22.7 (1.80)   4.9 (0.52)
Rural 27.4 (0.68)   41.2 (0.56)   31.4 (0.65)   25.3 (0.54)   6.1 (0.34)
Fringe 27.0 (1.10)   39.4 (0.75)   33.6 (1.04)   26.0 (0.84)   7.6 (0.57)
Distant 27.5 (1.03)   43.8 (1.05)   28.7 (1.02)   24.4 (0.94)   4.3 (0.39)
Remote 29.4 (1.38)   42.6 (1.39)   28.0 (1.31)   24.0 (1.12)   4.0 (0.56)
                             
Grade 12                            
Total 39.7 (0.80)   37.4 (0.80)   22.9 (0.72)   20.5 (0.61)   2.4 (0.22)
City 46.6 (1.74)   34.2 (1.42)   19.2 (1.19)   17.2 (1.00)   2.1 (0.41)
Large (†)   (†)   (†)   (†)   (†)
Midsize (†)   (†)   (†)   (†)   (†)
Small (†)   (†)   (†)   (†)   (†)
Suburban 35.5 (1.16)   38.0 (1.12)   26.5 (1.18)   23.3 (1.05)   3.2 (0.41)
Large (†)   (†)   (†)   (†)   (†)
Midsize (†)   (†)   (†)   (†)   (†)
Small (†)   (†)   (†)   (†)   (†)
Town 39.3 (2.49)   40.0 (1.90)   20.7 (1.95)   19.0 (1.67)   1.7 (0.61)
Fringe (†)   (†)   (†)   (†)   (†)
Distant (†)   (†)   (†)   (†)   (†)
Remote (†)   (†)   (†)   (†)   (†)
Rural 39.3 (1.95)   39.2 (1.65)   21.5 (1.68)   19.9 (1.63)   1.6 (0.30)
Fringe (†)   (†)   (†)   (†)   (†)
Distant (†)   (†)   (†)   (†)   (†)
Remote (†)   (†)   (†)   (†)   (†)
† Not applicable.
‡ Reporting standards not met.
NOTE: The achievement levels define what students should know and be able to do: Basic indicates partial mastery of fundamental skills, Proficient indicates demonstrated competency over challenging subject matter, and Advanced indicates superior performance. For more information on achievement levels, see http://nces.ed.gov/nationsreportcard/reading/achieve.asp. For more details on urban-centric locale categories, see http://nces.ed.gov/surveys/ruraled/definitions.asp. Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2015 Mathematics Assessment, NAEP Data Explorer.