B- Top 56%

King Open School

Grades PK-05 CAMBRIDGE, MA

Dropped 216 spots from last year

#537 State Rank
A- District Grade
850 Cambridge Street, CAMBRIDGE, MA 02139
391 Students
60.4 Composite Score

MCAS Test Scores

Massachusetts Comprehensive Assessment System results

English Language Arts

43.7% Proficient or Above
7% Advanced

Mathematics

42% Proficient or Above
9.7% Advanced

Science

34% Proficient or Above
8% Advanced

Score Trends

Year Subject Grade Proficient+ Advanced
2025 English Language Arts 03 42% 4%
2025 English Language Arts 04 53% 0%
2025 English Language Arts 05 36% 10%
2025 Mathematics 03 35% 7%
2025 Mathematics 04 57% 12%
2025 Mathematics 05 34% 10%
2025 Science 05 34% 8%
2024 English Language Arts 03 68% 14%
2024 English Language Arts 04 41% 8%
2024 English Language Arts 05 32% 7%
2024 Mathematics 03 60% 14%
2024 Mathematics 04 47% 18%
2024 Mathematics 05 32% 0%
2024 Science 05 27% 5%
2023 English Language Arts 03 39% 4%

MCAS is administered annually to students in grades 3-8 and 10. Scores reflect the percentage of students meeting or exceeding grade-level expectations.

Student Demographics

391 students enrolled

Race/Ethnicity

White 32.7%
Black 23.5%
Hispanic 17.4%
Asian 11.3%

Gender

53.7% Male
46.3% Female

Student Programs

English Learners 13%
Free/Reduced Lunch 40.7%

Location

850 Cambridge Street, CAMBRIDGE, MA

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Part of Cambridge School District

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Frequently Asked Questions

What is King Open School's letter grade?

King Open School has earned a letter grade of B-, based on MCAS test scores, attendance, and other performance metrics. This grade represents how the school compares to other Massachusetts Elementary schools.

What grades does King Open School serve?

King Open School serves students in grades PK through 05.

Is King Open School part of a school district?

Yes, King Open School is part of Cambridge School District. The district oversees multiple schools in the area and provides centralized administration, curriculum standards, and support services.

How are school ratings calculated?

School ratings are calculated using multiple factors including MCAS test scores (proficiency and growth), attendance rates, graduation rates (for high schools), and student-teacher ratios. The composite score is then converted to a letter grade based on statewide percentile rankings.