PublicCharterGrades K-5
Rocketship Mosaic Elementary School
950 Owsley Avenue, San Jose, CA 95122-3109(877) 806-0920
Total Students528
Student/Teacher33:1
Math Prof.65.81%
Reading Prof.60.26%
School Information
Charter SchoolYes
Magnet SchoolNo
Virtual SchoolNo
CountySanta Clara
School DistrictFranklin-McKinley Elementary School District
Principal / AdminMaricela Guerrero(877) 806-0920
Founded2011
Free/Reduced Lunch66.86% Eligible
Acceptance Rate100%
Student Demographics
White1.7%
Hispanic44.5%
Black0.9%
Asian51.7%
Pacific Islander0.4%
Two Or More0.8%
Gender Distribution
49.8%
50.2%
Male Female
Students per Grade
Grade 199
Grade 2123
Grade 3100
Grade 4107
Grade 533
School Calendar 2026-2027
August 2026
Academic Schedule • 2026-2027
Holiday Event
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TK/Kinder Camp
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10
First Day of SchoolMinimum Days/Home Visits
11
Minimum Days/Home Visits
12
Minimum Days/Home Visits
13
Minimum Days/Home Visits
14
Minimum Days/Home Visits
15
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Fall NWEA Testing Begins
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Rocketship Mosaic Elementary School
Academic Calendar (2026-2027)
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November 2026
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December 2026
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January 2027
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February 2027
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March 2027
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May 2027
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June 2027
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Key Dates & Holidays
TK/Kinder CampAug 7
First Day of SchoolAug 10
Minimum Days/Home VisitsAug 10
Fall NWEA Testing BeginsAug 26
Labor Day HolidaySep 7
Fall NWEA Testing EndsSep 11
Family ConferencesOct 5
Indigenous Peoples DayOct 12
Veterans DayNov 11
Thanksgiving BreakNov 23
Winter NWEA Testing BeginsNov 30
Winter NWEA Testing EndsDec 11
Winter Recess BeginsDec 21
Winter Recess EndsJan 5
Martin Luther King Jr. DayJan 18
Family Conferences (Minimum Day)Feb 11
Family Conferences (No School)Feb 12
President's DayFeb 15
February BreakFeb 16
Spring BreakApr 5
Spring NWEA Testing BeginsApr 14
Spring NWEA Testing EndsApr 28
G3-G5 SBAC Testing BeginsMay 3
G3-G5 SBAC Testing EndsMay 21
Memorial DayMay 31
Family ConferencesJun 1
Last Day of SchoolJun 3
Key Dates & Holidays
2026-2027Community Reviews
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