Massachusetts School and District Profiles

Brookline High

Districts
Schools

2026

Accountability Report

2026 Official Accountability Report - Brookline High

Organization Information

DISTRICT NAME
Brookline (00460000)

TITLE I STATUS
Title I School

SCHOOL
Brookline High (00460505)

GRADES SERVED
09,10,11,12

REGION
Coastal

FEDERAL DESIGNATION
-

Accountability Information

Overall classification

Requiring assistance or intervention

Reason for classification

In need of focused/targeted support

Low participation rate: Asian -Black or African American -Students with Disabilities -Low Income -English Learners and Former English Learners -High Needs -All Students

Progress toward improvement targets	Accountability percentile
75% - Meeting or exceeding targets	88

OVERALL RESULTS
STUDENT GROUP RESULTS
DETAILED DATA FOR EACH INDICATOR

Overall progress toward improvement targets

	2025	2026
Annual criterion-referenced target percentage	95%	63%
Weight	40%	60%
Cumulative Criterion-referenced target percentage (2025 x 40%) + (2026 x 60%)	75%
	Meeting or exceeding targets

2026 Points awarded

2026 Progress toward improvement targets
Indicator		All Students (High school grades)			Lowest Performing Students (High school grades)
Indicator		Points earned	Total possible points	Weight %	Points earned	Total possible points	Weight %
Achievement	English language arts achievement	4	4	-	0	4	-
	Mathematics achievement	4	4	-	0	4	-
	Science achievement	4	4	-	3	4	-
	Achievement total	12	12	40.0	3	12	67.5
Growth	English language arts growth	3	4	-	3	4	-
	Mathematics growth	3	4	-	3	4	-
	Growth total	6	8	20.0	6	8	22.5
High school completion	Four-year cohort graduation rate	4	4	-	-	-	-
	Extended engagement rate	4	4	-	-	-	-
	Annual dropout rate	3	4	-	-	-	-
	High school completion total	11	12	20.0	-	-	-
Progress toward attaining English language proficiency	English language proficiency total	3	4	10.0	-	-	-
Additional indicators	Chronic absenteeism	4	4	-	0	4	-
	Advanced coursework completion	3	4	-	-	-	-
	Additional indicators total	7	8	10.0	0	4	10.0
Weighted total		9.2	10.0	-	3.4	10.3	-
Percentage of possible points		92%		-	33%		-
2026 Annual criterion-referenced target percentage		63%

2025 Points awarded

2025 Progress toward improvement targets
Indicator		All Students (High school grades)			Lowest Performing Students (High school grades)
Indicator		Points earned	Total possible points	Weight %	Points earned	Total possible points	Weight %
Achievement	English language arts achievement	4	4	-	4	4	-
	Mathematics achievement	4	4	-	4	4	-
	Science achievement	4	4	-	4	4	-
	Achievement total	12	12	40.0	12	12	67.5
Growth	English language arts growth	3	4	-	3	4	-
	Mathematics growth	3	4	-	3	4	-
	Growth total	6	8	20.0	6	8	22.5
High school completion	Four-year cohort graduation rate	4	4	-	-	-	-
	Extended engagement rate	4	4	-	-	-	-
	Annual dropout rate	3	4	-	-	-	-
	High school completion total	11	12	20.0	-	-	-
Progress toward attaining English language proficiency	English language proficiency total	4	4	10.0	-	-	-
Additional indicators	Chronic absenteeism	4	4	-	4	4	-
	Advanced coursework completion	3	4	-	-	-	-
	Additional indicators total	7	8	10.0	4	4	10.0
Weighted total		9.3	10.0	-	9.9	10.3	-
Percentage of possible points		93%		-	96%		-
2025 Annual criterion-referenced target percentage		95%

Student group percentile

This group's overall performance relative to the performance of the same student group in schools serving similar grades

Overall progress toward improvement targets

	2025	2026
Annual criterion-referenced target percentage	69%	40%
Weight	40%	60%
Cumulative Criterion-referenced target percentage (2025 x 40%) + (2026 x 60%)	52%
	Substantial progress toward targets

2026 Points awarded

2026 Progress toward improvement targets
Indicator		High Needs Student Group (High school grades)
Indicator		Points earned	Total possible points	Weight %
Achievement	English language arts achievement	0	4	-
	Mathematics achievement	3	4	-
	Science achievement	3	4	-
	Achievement total	6	12	47.5
Growth	English language arts growth	2	4	-
	Mathematics growth	3	4	-
	Growth total	5	8	22.5
High school completion	Four-year cohort graduation rate	0	4	-
	Extended engagement rate	0	4	-
	Annual dropout rate	0	4	-
	High school completion total	0	12	20.0
Progress toward attaining English language proficiency	English language proficiency total	-	-	-
Additional indicators	Chronic absenteeism	1	4	-
	Advanced coursework completion	2	4	-
	Additional indicators total	3	8	10.0
Weighted total		4.3	10.7	-
Percentage of possible points		40%		-
2026 Annual criterion-referenced target percentage		40%

2025 Points awarded

2025 Progress toward improvement targets
Indicator		High Needs Student Group (High school grades)
Indicator		Points earned	Total possible points	Weight %
Achievement	English language arts achievement	3	4	-
	Mathematics achievement	3	4	-
	Science achievement	4	4	-
	Achievement total	10	12	47.5
Growth	English language arts growth	3	4	-
	Mathematics growth	3	4	-
	Growth total	6	8	22.5
High school completion	Four-year cohort graduation rate	0	4	-
	Extended engagement rate	3	4	-
	Annual dropout rate	2	4	-
	High school completion total	5	12	20.0
Progress toward attaining English language proficiency	English language proficiency total	-	-	-
Additional indicators	Chronic absenteeism	2	4	-
	Advanced coursework completion	1	4	-
	Additional indicators total	3	8	10.0
Weighted total		7.4	10.7	-
Percentage of possible points		69%		-
2025 Annual criterion-referenced target percentage		69%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - High school
Group	2025 Achievement	2026 Achievement	Change	2026 Target	N	Points	Reason
All Students	519.8	517.5	-2.3	520.8	504	4	Path Forward: Exceeded Target
Lowest Performing	500.2	493.6	-6.6	503.8	94	0	Path Forward: Declined
High Needs	503.3	499.1	-4.2	504.6	145	0	Recovery Path: Declined
English Learners and Former English Learners	494.5	492.7	-1.8	495.7	36	3	Recovery Path: Met Target
Low Income	504.6	497.2	-7.4	508.2	85	0	Path Forward: Declined
Students with Disabilities	498.9	493.8	-5.1	500.8	80	3	Path Forward: Met Target
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	522.2	519.0	-3.2	524.4	88	4	Recovery Path: Exceeded Target
Black or African American	496.4	494.5	-1.9	500.4	33	0	Path Forward: Declined
Hispanic or Latino	510.4	505.5	-4.9	513.1	55	3	Path Forward: Met Target
Multi-Race, Not Hispanic or Latino	524.4	524.4	0.0	525.4	55	4	Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	522.3	520.9	-1.4	523.6	273	4	Path Forward: Exceeded Target

Mathematics achievement - MCAS average composite scaled score - High school
Group	2025 Achievement	2026 Achievement	Change	2026 Target	N	Points	Reason
All Students	521.6	522.3	0.7	522.7	496	4	Path Forward: Exceeded Target
Lowest Performing	497.7	493.9	-3.8	501.0	94	0	Path Forward: Declined
High Needs	505.6	504.5	-1.1	508.3	139	3	Path Forward: Met Target
English Learners and Former English Learners	516.0	508.9	-7.1	521.1	34	3	Path Forward: Met Target
Low Income	503.5	503.4	-0.1	508.0	80	3	Path Forward: Met Target
Students with Disabilities	496.7	493.5	-3.2	499.2	76	3	Path Forward: Met Target
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	534.0	531.8	-2.2	537.4	88	4	Path Forward: Exceeded Target
Black or African American	491.3	492.7	1.4	496.4	32	2	Path Forward: Improved Below Target
Hispanic or Latino	506.6	507.2	0.6	510.8	53	3	Path Forward: Met Target
Multi-Race, Not Hispanic or Latino	524.7	528.7	4.0	525.8	56	4	Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	522.8	524.3	1.5	523.9	267	4	Path Forward: Exceeded Target

Science achievement - MCAS average composite scaled score - High school
Group	2025 Achievement	2026 Achievement	Change	2026 Target	N	Points	Reason
All Students	523.5	517.9	-5.6	524.5	472	4	Path Forward: Exceeded Target
Lowest Performing	501.7	491.8	-9.9	504.3	88	3	Path Forward: Met Target
High Needs	507.8	501.7	-6.1	510.1	126	3	Path Forward: Met Target
English Learners and Former English Learners	516.5	512.2	-4.3	520.8	26	3	Path Forward: Met Target
Low Income	505.6	499.4	-6.2	507.6	70	3	Path Forward: Met Target
Students with Disabilities	500.1	494.3	-5.8	502.6	75	3	Path Forward: Met Target
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	532.6	524.7	-7.9	534.7	78	4	Path Forward: Exceeded Target
Black or African American	492.0	492.8	0.8	495.6	29	2	Recovery Path: Improved Below Target
Hispanic or Latino	510.8	503.9	-6.9	513.9	50	3	Recovery Path: Met Target
Multi-Race, Not Hispanic or Latino	526.1	523.9	-2.2	527.1	55	4	Path Forward: Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	525.8	520.1	-5.7	529.8	260	4	Recovery Path: Exceeded Target

English language arts growth - High school
Group	2026 Mean SGP	N	Points	Reason
All Students	50.2	424	3	Typical Growth - High
Lowest Performing	50.1	94	3	Typical Growth - High
High Needs	48.6	117	2	Typical Growth - Low
English Learners and Former English Learners	48.0	23	2	Typical Growth - Low
Low Income	49.8	66	2	Typical Growth - Low
Students with Disabilities	44.6	70	2	Typical Growth - Low
American Indian or Alaska Native	-	-	-	-
Asian	54.8	64	3	Typical Growth - High
Black or African American	47.2	28	2	Typical Growth - Low
Hispanic or Latino	48.0	45	2	Typical Growth - Low
Multi-Race, Not Hispanic or Latino	54.0	50	3	Typical Growth - High
Native Hawaiian or Other Pacific Islander	-	-	-	-
White	48.9	237	2	Typical Growth - Low

Mathematics growth - High school
Group	2026 Mean SGP	N	Points	Reason
All Students	55.6	426	3	Typical Growth - High
Lowest Performing	52.4	94	3	Typical Growth - High
High Needs	52.3	120	3	Typical Growth - High
English Learners and Former English Learners	53.1	29	3	Typical Growth - High
Low Income	54.8	68	3	Typical Growth - High
Students with Disabilities	46.7	67	2	Typical Growth - Low
American Indian or Alaska Native	-	-	-	-
Asian	60.2	70	4	Exceeded Typical Growth
Black or African American	52.4	28	3	Typical Growth - High
Hispanic or Latino	55.2	45	3	Typical Growth - High
Multi-Race, Not Hispanic or Latino	53.8	51	3	Typical Growth - High
Native Hawaiian or Other Pacific Islander	-	-	-	-
White	55.1	232	3	Typical Growth - High

Four-year cohort graduation rate - High school
Group	2024 Rate (%)	2025 Rate (%)	Change	Target (%)	N	Points	Reason
All Students	96.5	96.2	-0.3	95.0	549	4	Exceeded Target
Lowest Performing	-	-	-	-	-	-	-
High Needs	90.8	88.0	-2.8	93.9	175	0	Declined
English Learners and Former English Learners	-	-	-	-	16	-	-
Low Income	91.1	85.5	-5.6	95.0	110	0	Declined
Students with Disabilities	86.5	84.0	-2.5	90.5	100	0	Declined
American Indian or Alaska Native	-	-	-	-	1	-	-
Asian	98.9	96.4	-2.5	95.0	83	4	Exceeded Target
Black or African American	89.7	86.8	-2.9	90.8	38	0	Declined
Hispanic or Latino	95.1	94.8	-0.3	95.0	77	3	Met Target
Multi-Race, Not Hispanic or Latino	98.2	95.9	-2.3	95.0	49	4	Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	96.5	97.7	1.2	95.0	301	4	Exceeded Target

Extended engagement rate - High school
Group	2023 Rate (%)	2024 Rate (%)	Change	Target (%)	N	Points	Reason
All Students	97.9	97.7	-0.2	95.0	514	4	Exceeded Target
Lowest Performing	-	-	-	-	-	-	-
High Needs	95.5	93.5	-2.0	95.0	184	0	Declined
English Learners and Former English Learners	-	-	-	-	23	-	-
Low Income	93.4	91.9	-1.5	95.0	123	0	Declined
Students with Disabilities	94.9	91.7	-3.2	95.0	96	0	Declined
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	98.7	98.9	0.2	95.0	89	4	Exceeded Target
Black or African American	97.9	93.1	-4.8	95.0	29	0	Declined
Hispanic or Latino	98.1	96.3	-1.8	95.0	82	4	Exceeded Target
Multi-Race, Not Hispanic or Latino	96.3	98.2	1.9	95.0	57	4	Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	98.0	98.1	0.1	95.0	257	4	Exceeded Target

Annual dropout rate - High school
Group	2024 Rate (%)	2025 Rate (%)	Change	Target (%)	N	Points	Reason
All Students	0.6	0.8	0.2	1.0	2,166	3	Met Target
Lowest Performing	-	-	-	-	-	-	-
High Needs	1.7	2.4	0.7	1.5	625	0	Declined
English Learners and Former English Learners	3.0	9.6	6.6	2.7	52	0	Declined
Low Income	3.2	2.2	-1.0	2.8	322	4	Exceeded Target
Students with Disabilities	1.6	2.8	1.2	1.4	358	0	Declined
American Indian or Alaska Native	-	-	-	-	1	-	-
Asian	0.3	1.0	0.7	1.0	388	3	Met Target
Black or African American	3.0	0.7	-2.3	2.7	139	4	Exceeded Target
Hispanic or Latino	0.7	2.7	2.0	1.0	261	0	Declined
Multi-Race, Not Hispanic or Latino	0.9	0.0	-0.9	1.0	210	4	Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	1	-	-
White	0.3	0.5	0.2	1.0	1,166	3	Met Target

Progress toward attaining English language proficiency - High school
Group	2025 Rate (%)	2026 Rate (%)	Change	Target	N	Points	Reason
All Students	72.7	50.0	-22.7	78.7	48	3	Met Target
Lowest Performing	-	-	-	-	-	-	-
High Needs	-	-	-	-	-	-	-
English Learners and Former English Learners	72.7	50.0	-22.7	78.7	48	3	Met Target
Low Income	-	-	-	-	-	-	-
Students with Disabilities	-	-	-	-	-	-	-
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	-	-	-	-	-	-	-
Black or African American	-	-	-	-	-	-	-
Hispanic or Latino	-	-	-	-	-	-	-
Multi-Race, Not Hispanic or Latino	-	-	-	-	-	-	-
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-
White	-	-	-	-	-	-	-

Chronic absenteeism - High school
Group	2025 Rate (%)	2026 Rate (%)	Change	Target	N	Points	Reason
All Students	6.9	8.0	1.1	5.8	2,164	4	Exceeded Target
Lowest Performing	4.7	12.8	8.1	1.0	94	0	Declined
High Needs	16.4	16.7	0.3	13.3	683	1	No Change
English Learners and Former English Learners	12.8	14.6	1.8	8.3	192	0	Declined
Low Income	21.7	20.7	-1.0	17.5	367	2	Improved Below Target
Students with Disabilities	18.1	18.3	0.2	14.2	349	1	No Change
American Indian or Alaska Native	-	-	-	-	1	-	-
Asian	4.0	7.3	3.3	2.1	438	4	Exceeded Target
Black or African American	16.0	12.9	-3.1	12.7	140	3	Met Target
Hispanic or Latino	13.3	11.8	-1.5	9.3	262	2	Improved Below Target
Multi-Race, Not Hispanic or Latino	5.7	7.8	2.1	4.6	205	4	Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	3	-	-
White	5.5	6.8	1.3	4.1	1,115	4	Exceeded Target

Advanced coursework completion - High school
Group	2025 Rate (%)	2026 Rate (%)	Change	Target	N	Points	Reason
All Students	93.0	94.1	1.1	95.0	1,104	3	Met Target
Lowest Performing	-	-	-	-	-	-	-
High Needs	82.3	85.4	3.1	88.3	323	2	Improved Below Target
English Learners and Former English Learners	83.7	97.3	13.6	88.9	74	4	Exceeded Target
Low Income	85.7	85.1	-0.6	91.5	175	1	No Change
Students with Disabilities	75.0	75.3	0.3	82.7	170	2	Improved Below Target
American Indian or Alaska Native	-	-	-	-	-	-	-
Asian	95.1	96.0	0.9	95.0	227	4	Exceeded Target
Black or African American	89.7	81.3	-8.4	95.0	64	0	Declined
Hispanic or Latino	90.1	91.9	1.8	95.0	136	3	Met Target
Multi-Race, Not Hispanic or Latino	89.7	94.9	5.2	91.8	98	4	Exceeded Target
Native Hawaiian or Other Pacific Islander	-	-	-	-	2	-	-
White	93.9	95.1	1.2	95.0	577	3	Met Target

Assessment participation - All students
Group	English language arts					Mathematics					Science
Group	Enrolled	Assessed	%	Met Target?	Years in Rate	Enrolled	Assessed	%	Met Target?	Years in Rate	Enrolled	Assessed	%	Met Target?	Years in Rate
All Students	531	512	96	Yes	1	532	506	95	Yes	1	532	494	94	No	2

Assessment participation - Student Group
Group	English language arts		Mathematics		Science		Overall
Group	Enrolled	Assessed	Enrolled	Assessed	Enrolled	Assessed	Total Enrolled	Total Assessed	%	Met Target?	Years in Rate
High Needs	165	153	165	148	165	142	495	443	92	No	2
English Learners and Former English Learners	47	43	47	42	47	37	141	122	88	No	2
Low Income	95	90	95	84	95	81	285	255	90	No	2
Students with Disabilities	87	80	87	77	87	78	261	235	92	No	2
American Indian or Alaska Native	-	-	-	-	-	-	-	-	-	-	-
Asian	97	92	97	91	97	85	291	268	94	No	2
Black or African American	35	33	35	32	35	31	105	96	94	No	2
Hispanic or Latino	57	55	57	53	57	53	171	161	95	Yes	2
Multi-Race, Not Hispanic or Latino	56	55	56	56	56	56	168	167	99	Yes	1
Native Hawaiian or Other Pacific Islander	-	-	-	-	-	-	-	-	-	-	-
White	286	277	287	274	287	269	860	820	95	Yes	1

About this report

About the Data

Overall classification: All Massachusetts districts and schools with sufficient data are classified into one of two accountability categories: districts and schools requiring assistance or intervention, and districts and schools not requiring assistance or intervention. The reason(s) for the district's or school's classification are noted on this report.

Progress toward improvement targets: The criterion-referenced target percentage combines multiple years of data related to achievement, growth, high school completion, English learner progress, advanced coursework completion, and chronic absenteeism into a single number between 0 and 100. For a group to be considered to be meeting targets it must have a cumulative criterion-referenced target percentage of 75% or higher.

The annual criterion-referenced target percentage is calculated by dividing the weighted total points earned by the weighted total possible points. The calculation for each is displayed below.

Weighted total of points earned = (Total achievement points earned x Achievement weight) + (Total growth points earned x Growth weight) + (Total high school completion points earned x high school completion weight) + (EL progress points earned x EL progress weight) + (Total additional indicator points earned x Additional indicator weight)

The cumulative criterion-referenced target percentage represents a weighted average of the annual criterion-referenced target percentages. At a minimum, a group must have an annual criterion-referenced target percentage for the most recent year in order to receive a cumulative percentage.

Accountability percentile: An accountability percentile between 1 and 99 is reported for most schools. This number is an indication of the school's overall performance relative to other schools that serve similar grades, and is calculated using multiple years of data for all accountability indicators. School percentiles are not calculated for districts.

Resources

Interpretive Materials

Glossary of Accountability Terms