Average scale scores and percentages for grade 8 mathematics, by time per week on math instruction, race/ethnicity used to report trends, school-reported and jurisdiction: 2011, 2009, 2007, and 2005
Year	Jurisdiction	Race/ethnicity used to report trends, school-reported	Less than 3 hours		3-4.9 hours		5-6.9 hours		7 hours or more
Year	Jurisdiction	Race/ethnicity used to report trends, school-reported	Average scale score	Percentage	Average scale score	Percentage	Average scale score	Percentage	Average scale score	Percentage
‡ Reporting standards not met. NOTE: Black includes African American, Hispanic includes Latino, and Pacific Islander includes Native Hawaiian. Race categories exclude Hispanic origin. Prior to 2011, students in the “two or more races” category were categorized as “unclassified”. The NAEP Mathematics scale ranges from 0 to 500. Detail may not sum to totals because of rounding. Some apparent differences between estimates may not be statistically significant. Analyze results with NAEP Data Explorer. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005, 2007, 2009, and 2011 Mathematics Assessments.
2011	National	White	293	2	295	68	290	24	290	6
2011	National	Black	264	2	265	46	261	37	260	15
2011	National	Hispanic	271	2	272	53	271	33	264	13
2011	National	Asian/Pacific Islander	298	2	307	66	299	26	284	6
2011	National	American Indian/Alaska Native	268	2	270	50	264	35	257	13
2011	National	Two or more races	‡	2	291	64	283	25	286	8
2009	National	White	292	2	294	68	291	24	291	6
2009	National	Black	268	2	264	46	259	37	261	15
2009	National	Hispanic	264	1	268	54	267	31	264	14
2009	National	Asian/Pacific Islander	292	1	303	69	299	24	298	6
2009	National	American Indian/Alaska Native	‡	1	270	57	263	35	260	7
2009	National	Two or more races	‡	2	287	63	283	27	291	8
2007	National	White	291	3	293	69	289	23	289	5
2007	National	Black	261	2	262	46	258	36	260	16
2007	National	Hispanic	265	2	268	56	264	31	263	11
2007	National	Asian/Pacific Islander	290	2	299	68	296	25	289	5
2007	National	American Indian/Alaska Native	260	3	266	61	262	28	261	8
2007	National	Two or more races	‡	3	288	66	283	24	281	8
2005	National	White	286	3	290	71	287	21	285	5
2005	National	Black	251	2	258	51	253	34	254	13
2005	National	Hispanic	262	4	265	60	262	28	265	8
2005	National	Asian/Pacific Islander	276	2	298	71	294	22	285	5
2005	National	American Indian/Alaska Native	271	2	268	64	261	27	260	7
2005	National	Two or more races	‡	2	281	59	282	34	‡	4