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Los Osos High School
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(909) 460-5860

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Patriot Day Activity

Patriot Day Activity

Hey LOHS....


The Chaffey Joint Union High School District has partnered with School Loop. School Loop is an innovative communication tool designed to keep parents, students, teachers and staff connected. With School Loop parents and students can:

  •  Check assignments online
  •  Monitor current grades
  •  Email teachers/counselors
  •  View school news/events
  •  Submit work electronically

Every Chaffey District parent and student is encouraged to register. It takes less than two minutes to sign up and all accounts are FREE! Click the 'Register Now' tab on the top left of this page.   


"We are what we repeatedly do.  Excellence, therefore, is not an act, but a habit."  --Aristotle


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Welcome to the spring 2015 semester. We are looking forward to continued academic achievement, great seasons of winter/spring sports, activities, and performing arts. The upcoming semester will be both exciting and challenging as we move ahead into the second half of our school year and continue to prepare for testing season and graduation. Our testing cycle begins with the California High School Exit Exam for sophomores on March 17th and 18th. Testing continues with the tenth grade Life Science exam to be taken in April. Also in April, our eleventh grade students will be taking two types of tests; EAP’s for English Language Arts/ Math and the Smarter Balanced exams (SBAC – computer based assessment). Exact dates will be posted as soon as the schedule is finalized for CAASP Testing.

The simultaneous beginning of the New Year and the spring semester is a perfect time to review with your student the progress made towards achieving their personal and academic goals.  If you haven’t already done so, take this time early in the semester to discuss with your student the importance of having a strong finish to this school year (spring and summer breaks will be here before you know it).  Please utilize School Loop to check your student’s progress and do not hesitate to contact teachers, counselors and administrators should you have concerns with your student’s progress.  Thank you for your continued support of Los Osos High School.

Grizzly regards,

Susan Petrocelli

Week at a Glance


Tutoring Opportunites

LOHS Tutoring Opportunities

Before & After School (In Library)
Monday - Thursday

During Lunch (In Library)
Monday - Friday


No need to sign up, just go to the library for FREE TUTORING!!!

Parent Presentation

Topic: Latest Trends Among the Young
A Must-See Presentation!

Wednesday, April 8, 2015
6:30 P.M. - 8:00 P.M.
Chaffey Joint Union High School District Office - Hill Auditorium

English Flyer
Spanish Flyer

Aeries.net Parent Portal Accounts Now Available!


The Chaffey Joint Union High School District is pleased to announce the Aeries.net Parent Portal. This new tool allows parents the opportunity to electronically update student information and complete the summer mailer online. This process is optional and ready now! Here’s how to get started:

  1. Complete the letter received by mail or download a copy here and return to the LOHS guidance office.
  2. You will be contacted by LOHS with your unique code needed to open your Aeries.net Parent Portal account.
  3. Download instructions here on how to create your Aeries.net Parent Portal Account.
  4. When the Summer Data Confirmation Window opens in Aeries.net you will be able to update your student information online instead of completing most documents included with the summer mailer. Click here to view a brief video on completing your summer data using Aeries.net.

Click the link below to connect to Aeries.net:

Order Your Official Transcript Online!

The link above provides you with the ability to request transcripts online. Transcripts requested online are sent securely to the colleges, universities, or scholarship funds that you select.

Los Osos High School - A California Distinguished School

CA Distinguished School Logo

Dear Distinguished School Award Recipient,

Congratulations on successfully completing the 2013 California Distinguished School application process, and being recognized as one of our 218 California Middle and High Distinguished Schools! This award is a direct reflection of the dedication, hard work, and vision of your school’s educational community, and I am pleased to be able to award this honor to your school.

This year we will be recognizing the 2013 Distinguished Middle and High Schools along with the Exemplary Program Honors, the 2012 National Blue Ribbon Schools, and the 2013 Title I Academic Achievement Award Schools.

The news release identifying all the 2013 Distinguished Middle and High Schools is posted online at http://www.cde.ca.gov/ under What’s New.

Again, congratulations on receiving Distinguished School recognition. Please note that if you also applied for Exemplary Program honors, it will be announced very soon through a separate news release. If you have any questions regarding this subject, contact the Awards Team at 916-319-0842 or by e-mail at Awards@cde.ca.gov.


Tom Torlakson

Apply Online for Meal Benefits

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Try a new and convenient way to apply for Free and Reduced Meal Benefits online. It's fast, easy and confidential. 


Mrs. Petrocelli, Principal

Susan Petrocelli, Principal

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Important Senior Information

School Accountability Report Card

2013-2014 - English
2012-2013 - Spanish

A hard copy of our SARC Report is available in the main office.

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NCAA Eligibility



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