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Dear Colonial Acres Families,

I am excited to welcome you to the 2016-17 school year!  Hopefully the summer has provided you with many memorable opportunities to spend time with family and friends.  It is my pleasure and privilege to serve as the principal of such an exemplary student-centered learning community.  As we prepare to embark on another year, I am reminded that the beginning of school is truly a special time, and I am eagerly looking forward to partnering with you as we continue to nurture the ongoing development of your child.  Fortunately, our school continues to be a team of exceptionally talented and committed teaching staff that is anchored by a supportive Central Office Administration and Board of Education.


By way of this letter, I want to re-introduce myself and hope to learn more about you all as the year progresses.  I begin by sharing that as many of you do with your own children, my parents always stressed that education was the key to success and achieving anything in life.  My work ethic, I am proud to say, derives from my family, from a father who doggedly pursued the American dream, and from “bracero” grandparents, who worked the fields from Brawley to Watsonville to Stockton, California in the early forties and fifties.  Education has played a major role in who I am and what I have become.


I taught for ten+ years and had fun teaching 1st and 2nd grade students.  I have always received enormous satisfaction when students interest is sparked and when young minds struggling to exceed educational rigors and expectations eventually succeed.  I enjoy building rapport and trust between students, parents, and staff.  I am a firm believer that the higher your expectations, the higher the results will be and that all adults are to be held accountable for each child’s academic success. 


At Colonial Acres I look forward to continue striving to be an instructional leader that motivates its staff, parents, and students to achieve high expectations.  I am a firm believer that all children are learners and have the right to equitable education and to aspire to the very highest ideals and expectations.


Please mark your calendars for the following dates and times

  • School is open for new student registration, 8/18-8/23 from 9-11 and 1-3. On 8/24 from 9-11 only. No registration on FRIDAY, 8/25.
  • Ice Cream Social on Friday, August 26th at 3:00pm. Class Lists for the 2016-17 school year will be posted near the school’s main entrance. 
    • Please note that classroom assignments are subject to change.  At the beginning of each school year it is necessary to make some classroom changes in order to provide the best educational opportunity for all children.  The changes are necessary due to such factors as the need to balance classes as well as the language needs of various children.  These moves are made only in the best interests of all children.  However, once these moves are made they are final.  
  • School starts on Monday, August 29th at 8:10am in the morning.  Students should be dropped off no later than 8:05am.  Parents, we must resist the temptation to follow students into their classrooms.  Please say goodbye on the playground so that the instructional day can begin!

I certainly look forward to seeing you all at these and other events during the school year.  Please enjoy the remaining days of your summer, as we eagerly anticipate another fulfilling year of meaningful learning experiences for our students.  Feel free to contact me with any questions or concerns at 510-317-4500.



J. Ruben Olivares






1st-3rd Grade

4th-5th Grade

Regular Days (M, T, Th, F)










Minimum and Shortened Days





new student registration

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If your student is NEW to San Lorenzo School District, you may register online; and once complete, you will be contacted to schedule an appointment to bring in necessary documentation.  


Click Below for Online Registration

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  For more information please click here: English | Spanish

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Today: 8/29/16
All Day: First Day of Instruction

Important Dates

*August 29, First Day of School

*August 29-31 and September 1-9

  • Minimum and Shortened Days
    • TK & K classroom instruction begins every day at 8:15; TK is dismissed at 12:15 every day, Kindergarten is dismissed at 1:05 for the first 2 weeks of school for beginning of the year assessments and planning (except Wednesdays when K-5th grade students are dismissed at 1:00pm)
    • 1st-5th Grade classroom instruction begins every day at 8:12; 1st-5th grade students are dismissed at 1:15 for the first 2 weeks of school for beginning of the year assessments and planning (except Wednesdays when K-5th grade students are dismissed at 1:00pm)

*September 5, NO SCHOOL:  Labor Day

*September 7, Back to School Night TK-2nd Grade, Time TBD

*September 14, Back to School Night 3rd-5th Grade, Time TBD