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Lyon K-8 School
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2025 Official Accountability Report - Lyon K-8 School
Organization Information
DISTRICT NAME
Boston (00350000)		TITLE I STATUS
Title I School
SCHOOL
Lyon K-8 School (00350004)		GRADES SERVED
K,01,02,03,04,05,06,07,08
REGION
Coastal		FEDERAL DESIGNATION
-

Accountability Information

Overall classificationNot requiring assistance or intervention
Reason for classification
Moderate progress toward targets
Progress toward improvement targetsAccountability percentile
33% - Moderate progress toward targets16

Overall progress toward improvement targets

 20242025
Annual criterion-referenced target percentage69%9%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2024 x 40%) + (2025 x 60%)		33%
Moderate progress toward targets

2025 Points awarded

2025 Progress toward improvement targets
Indicator All Students
(Non-high school grades)		 Lowest Performing Students
(Non-high school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement04----
Mathematics achievement04----
Science achievement04----
Achievement total01260.0---
GrowthEnglish language arts growth14----
Mathematics growth24----
Growth total3820.0---
High school completionFour-year cohort graduation rate------
Extended engagement rate------
Annual dropout rate------
High school completion total------
Progress toward attaining English language proficiencyEnglish language proficiency total3410.0---
Additional indicatorsChronic absenteeism04----
Advanced coursework completion------
Additional indicators total0410.0---
Weighted total0.99.6----
Percentage of possible points 9%---
2025 Annual criterion-referenced target percentage9%

2024 Points awarded

2024 Progress toward improvement targets
Indicator All Students
(Non-high school grades)		 Lowest Performing Students
(Non-high school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement24----
Mathematics achievement24----
Science achievement44----
Achievement total81260.0---
GrowthEnglish language arts growth34----
Mathematics growth24----
Growth total5820.0---
High school completionFour-year cohort graduation rate------
Extended engagement rate------
Annual dropout rate------
High school completion total------
Progress toward attaining English language proficiencyEnglish language proficiency total4410.0---
Additional indicatorsChronic absenteeism44----
Advanced coursework completion------
Additional indicators total4410.0---
Weighted total6.69.6----
Percentage of possible points 69%---
2024 Annual criterion-referenced target percentage69%

Student group percentile

This group's overall performance relative to the performance of the same student group in schools serving similar grades
18

Overall progress toward improvement targets

 20242025
Annual criterion-referenced target percentage53%18%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2024 x 40%) + (2025 x 60%)		32%
Moderate progress toward targets

2025 Points awarded

2025 Progress toward improvement targets
Indicator High Needs Student Group
(Non-high school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement04-
Mathematics achievement14-
Science achievement---
Achievement total1867.5
GrowthEnglish language arts growth14-
Mathematics growth24-
Growth total3822.5
High school completionFour-year cohort graduation rate---
Extended engagement rate---
Annual dropout rate---
High school completion total---
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism04-
Advanced coursework completion---
Additional indicators total0410.0
Weighted total1.47.6-
Percentage of possible points 18%-
2025 Annual criterion-referenced target percentage18%

2024 Points awarded

2024 Progress toward improvement targets
Indicator High Needs Student Group
(Non-high school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement34-
Mathematics achievement14-
Science achievement---
Achievement total4867.5
GrowthEnglish language arts growth24-
Mathematics growth24-
Growth total4822.5
High school completionFour-year cohort graduation rate---
Extended engagement rate---
Annual dropout rate---
High school completion total---
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism44-
Advanced coursework completion---
Additional indicators total4410.0
Weighted total4.07.6-
Percentage of possible points 53%-
2024 Annual criterion-referenced target percentage53%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - Non-high school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 486.1 483.9 -2.2 489.4 960Recovery Path: Declined
Lowest Performing---- 19--
High Needs 482.4 481.8 -0.6 485.9 820Recovery Path: Declined
English Learners and Former English Learners---- 29--
Low Income 481.4 480.7 -0.7 485.4 700Recovery Path: Declined
Students with Disabilities 477.1 479.9 2.8 481.5 362Recovery Path: Improved Below Target
American Indian or Alaska Native-------
Asian---- 4--
Black or African American---- 22--
Hispanic or Latino 477.6 477.0 -0.6 482.6 370Recovery Path: Declined
Multi-Race, Not Hispanic or Latino---- 9--
Native Hawaiian or Other Pacific Islander-------
White---- 24--

Mathematics achievement - MCAS average composite scaled score - Non-high school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 486.3 484.9 -1.4 489.6 960Recovery Path: Declined
Lowest Performing---- 19--
High Needs 482.8 482.8 0.0 486.1 821Recovery Path: No Change
English Learners and Former English Learners---- 30--
Low Income 482.4 480.3 -2.1 486.1 700Recovery Path: Declined
Students with Disabilities 483.5 482.5 -1.0 488.4 360Recovery Path: Declined
American Indian or Alaska Native-------
Asian---- 4--
Black or African American---- 22--
Hispanic or Latino 478.0 479.7 1.7 482.7 372Recovery Path: Improved Below Target
Multi-Race, Not Hispanic or Latino---- 9--
Native Hawaiian or Other Pacific Islander-------
White---- 24--

Science achievement - MCAS average composite scaled score - Non-high school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 493.3 482.4 -10.9 497.6 300Path Forward: Declined
Lowest Performing---- 9--
High Needs---- 25--
English Learners and Former English Learners---- 5--
Low Income---- 22--
Students with Disabilities---- 12--
American Indian or Alaska Native-------
Asian---- 1--
Black or African American---- 8--
Hispanic or Latino---- 12--
Multi-Race, Not Hispanic or Latino-------
Native Hawaiian or Other Pacific Islander-------
White---- 9--

English language arts growth - Non-high school
Group 2025 Mean SGP N Points Reason
All Students 36.8 741Low Growth
Lowest Performing- 19--
High Needs 39.1 631Low Growth
English Learners and Former English Learners- 17--
Low Income 38.7 551Low Growth
Students with Disabilities 42.9 282Typical Growth - Low
American Indian or Alaska Native----
Asian- 2--
Black or African American- 19--
Hispanic or Latino 38.8 291Low Growth
Multi-Race, Not Hispanic or Latino- 6--
Native Hawaiian or Other Pacific Islander----
White- 18--

Mathematics growth - Non-high school
Group 2025 Mean SGP N Points Reason
All Students 43.3 782Typical Growth - Low
Lowest Performing- 19--
High Needs 42.3 672Typical Growth - Low
English Learners and Former English Learners- 20--
Low Income 42.2 592Typical Growth - Low
Students with Disabilities 41.4 302Typical Growth - Low
American Indian or Alaska Native----
Asian- 2--
Black or African American- 20--
Hispanic or Latino 43.4 312Typical Growth - Low
Multi-Race, Not Hispanic or Latino- 6--
Native Hawaiian or Other Pacific Islander----
White- 19--

Progress toward attaining English language proficiency - Non-high school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 52.0 54.8 2.8 54.2 423Met Target
Lowest Performing-------
High Needs-------
English Learners and Former English Learners-------
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 - Non-high school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 23.4 27.0 3.6 21.2 1370Declined
Lowest Performing---- 19--
High Needs 23.4 29.4 6.0 20.9 1190Declined
English Learners and Former English Learners---- 57--
Low Income 25.0 32.4 7.4 22.3 1020Declined
Students with Disabilities 25.6 37.8 12.2 21.3 450Declined
American Indian or Alaska Native---- 1--
Asian---- 9--
Black or African American---- 29--
Hispanic or Latino 27.1 30.5 3.4 23.3 590Declined
Multi-Race, Not Hispanic or Latino---- 10--
Native Hawaiian or Other Pacific Islander-------
White---- 29--

Assessment participation - All students
Group English language arts Mathematics Science
Enrolled Assessed % Met Target? Years in Rate Enrolled Assessed % Met Target? Years in Rate Enrolled Assessed % Met Target? Years in Rate
All Students 111 10998Yes 1 110 10999Yes 1 38 3797Yes 1

Assessment participation - Student Group
Group English language arts Mathematics Science Overall
Enrolled Assessed Enrolled Assessed Enrolled Assessed Total Enrolled Total Assessed % Met Target? Years in Rate
High Needs 97 95 96 95 33 32 226 22298Yes1
English Learners and Former English Learners 42 41 42 42 11 11 95 9499Yes1
Low Income 83 81 82 81 29 28 194 19098Yes1
Students with Disabilities 39 38 38 38 13 13 90 8999Yes1
American Indian or Alaska Native-----------
Asian 8 8 8 8 2 2 18----
Black or African American 23 23 23 23 9 9 55 55100Yes1
Hispanic or Latino 46 44 45 44 17 16 108 10496Yes1
Multi-Race, Not Hispanic or Latino 9 9 9 9 0 0 18----
Native Hawaiian or Other Pacific Islander-----------
White 25 25 25 25 10 10 60 60100Yes1


About this report

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.


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