Cinnabar Charter
286 Skillman Lane
Petaluma, CA 94952

CSR Rank: 6 out of 102
Compare to 2013 - Rank: 8, API Score: 871

2016 CAASPP Test Score Details:
GradeTest TypeMean ScoreExceeded
Nearly Met
Not Met
3English2439.3 26%26%33% 15%
3Math2420.7 11%30%26% 33%
4English2472.0 9%41%36% 14%
4Math2467.7 5%32%45% 18%
5English2512.7 14%48%17% 21%
5Math2464.8 3%10%50% 37%
6English2505.3 0%39%50% 11%
6Math2490.9 0%21%46% 32%
7English2515.8 0%37%37% 26%
7Math2493.2 5%11%32% 53%
8English2571.2 4%56%32% 8%
8Math2548.2 8%32%32% 28%
- Asterisk "*", if present, indicates scores are not available (too few)
Calculated Percentiles from California School Ratings:
English Language Arts/Literacy Mathematics
GradePercentileStudents TestedPercentileStudents Tested
372.67%27 51.33%27
467.67%23 61.74%22
568.52%29 39.85%30
643.92%28 43.96%28
732.44%19 31.64%19
864.02%25 60.8%25
Weighted average for this school's Math and English test scores: 53.79%1-c
This school is in the 53.59th percentile1-d when compared to other schools of the same type: Elementary
Student Ethnicity:
Hispanic or Latino
Two or More Races
Pacific Islander
African American

Kindergarten Immunization Information:
(2014-15 School Year)
  • Up-to-date Immunizations: 85% (28)
  • Conditional admission: 15% (5)  6
  • Medical exemptions: 0% (0)
  • Personal Belief exemptions: 0% (0)
  • Religious Belief exemptions: 0% (0)

  1. California School Ratings (CSR) computes percentiles in this way:
    1. For a given grade level, all Math scores are put into an ordered list and a percentile is calculated for each score, based its position in the list.
    2. For a given grade level, all English scores are put into an ordered list and a percentile is calculated for each score, based its position in the list.
    3. Math and English percentiles from (a & b above) are weighted, based on the number of students who completed each type of test, to create a combined Math+English weighted percentile for each school.
    4. The combined Math+English weighted percentiles are put into an ordered list for the particular type of school (elementary/middle/high school/K-12) and a percentile-within-the-school-type is calculated.
    5. How percentiles work: the school percentile is a number between 0 and 100 that reflects the percentage of schools of the same type (elementary/middle/high school/K-12) in California that have an equal or lower combined Math+English weighted percentile (from 1-c above). For example, a school in the 70th percentile would have a combined weighted percentile that was equal to or better than 70% of the other schools of the same type.
  2. The CSR Rank is determined by a school's percentile in comparison to other schools of the same type in California (from 1-d above). (1 is the worst, 10 is the best). Schools in the 90th percentile and above have rank 10, 80%-89.999% rank 9 and so on. A similar number of schools occupy each rank. * This rank is derived from data in the 2016 California Assessment of Student Performance and Progress (CAASPP).
  3. Alternative Schools receive percentiles, but are not ranked
  4. More information: 2016 CAASPP Paper-based Test Results