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

REGION
Coastal

GRADES SERVED
09,10,11,12

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
SCHOOLS IN THIS DISTRICT

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

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

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

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